Vibe sequence mri radiology. Materials and methods 2.
Vibe sequence mri radiology Materials and methods A retrospective review of an MRI series of lumbar pars interarticularis injuries in elite athletes over a 3-year period. Therefore, the purpose of this study is to explore the application of CAIPIRINA and MOCO techniques in liver VIBE sequence on 3. Radiology 1984; 153:189-194. The MA-CDT-VIBE sequence with five arterial subphases in one breath-hold had high temporal and spatial resolution, and had a technical advantage in the detection of enhanced dysplastic Feb 23, 2018 · An MRI protocol should include a heavily water weighted sequence, such as a short-tau inversion recovery (STIR) sequence, to detect bone oedema, along with a fine-slice VIBE or equivalent sequence Apr 22, 2021 · VIBE sequences are characterised by lower signal characteristics of fluid compared to standard T 1 weighted images. One of the great advantages of MRI is its ability to image physiological flow of fluids (e. 2 It has the advantage of improving Z-axis resolution, which makes it possible to obtain high-quality multiplanar and 3D reconstruction images. In comparison to a standard VIBE sequence, CS-VIBE has several key advantages. VIBE sequences are characterised by lower signal characteristics of fluid compared to standard T 1 weighted images. . This allows for the imaging of arteries, veins and CSF flow. Areas containing adipose tissues appear dark in T1 VIBE fat-saturated images. Imaging findings in this group are the same as those conventionally describing osteitis pubis. Pubic apophysitis is best visualised with VIBE magnetic resonance imaging (MRI) and may be a more pathologically correct description of early, adductor load-related pubic bone pathology. Standard MRI sequences may be supplemented with CT to reduce dia … Nov 6, 2023 · Multi-echo 3D volumetric interpolated breath-hold examination sequence (VIBE) with fat-suppression via Dixon technique (VIBE-Dixon) of the chest is routinely used as an anatomic imaging module in cardiac MRI imaging. Jun 1, 2002 · BACKGROUND AND PURPOSE: T1-weighted, 3D gradient-echo MR sequences can be optimized for rapid acquisition and improved resolution through asymmetric k-space sampling and interpolation. 1. , subcutaneous fat and fat in bone marrow). May 1, 2021 · Objective To compare the diagnostic accuracy of 3-T magnetic resonance imaging (MRI) with thin-slice 3D T1 VIBE sequence to 128-slice computer tomography (CT) in pars stress fractures of the The purpose of this study is to compare image quality and liver lesion detection (LLD) on a shorter-duration T1W VIBE sequence using the controlled aliasing in parallel imaging results in higher acceleration (CAIPIRINHA) technique with the conventional T1W GRAPPA-VIBE sequence during a single liver MRI session on a 1. Nov 19, 2024 · Each participant underwent T1-weighted VIBE imaging, comprising two distinct sequences: (i), A conventional VIBE sequence featuring a fourfold controlled aliasing in parallel imaging results in higher acceleration (CAIPIRINHA) acceleration with an acquisition time of 16 s, a slice thickness of 3. Examples of such pathologies include tumors like hemangioma, lymphangioma, hemangioendothelioma, Kaposi’s sarcoma, angiosarcoma, hemangioblastoma, as well as inflammatory processes like discitis, meningitis, synovitis, arthritis, and osteomyelitis. Key Words: liver MRI, free-breathing radial T1-weighted gradient echo sequence, radial volumetric interpolated breath-hold (radial VIBE) sequence (Invest Radiol 2011;46: 648–653) P hysiologic and bulk motion, including respiratory motion, car-diac pulsation, and bowel peristalsis, can degrade the image Nov 25, 2022 · VIBE-MRI is a promising tool for the diagnosis of MSK injuries in radiation-sensitive athletes Keywords: VIBE-MRI, musculoskeletal injuries, radiation exposure Volumetric interpolated breath-hold examination (VIBE) is an MRI sequence that is increasingly being used by Sports and Exercise Medicine (SEM) clinicians, to evaluate sports injuries in radiation-sensitive populations (1). perform dynamic imaging. Methods Patients were prospectively enrolled between February 2021 and September 2022. The remaining MRI exams from 230 patients were collected from the picture archiving system (PACS) of the hospital in Digital Imaging and Communications in Medicine (DICOM) format. The first phase Flowchart of examination sequence in integrated PET/CT and PET/MRI scanners. image weighting T1 T2 T2*: T2 star PD: proton density DWI: Nov 23, 2012 · Because the morphologic appearance of the ductal system on MRI depends on spatial resolution , the 3D VIBE sequence, which allows high-spatial-resolution images with near-isotropic voxels to be obtained, is thought to be a useful sequence for breast MRI [9, 10]. It offers Jan 10, 2025 · Objective This study aims to evaluate the efficacy of two free-breathing magnetic resonance imaging (MRI) sequences—spiral ultrashort echo time (spiral UTE) and radial volumetric interpolated breath-hold examination (radial VIBE). Methods Prospective Mar 15, 2018 · We appreciate that MRI has limited sensitivity in the detection of loose bodies and oedematous and/or small loose bodies in complex joints, particularly when surrounded by synovitis, may be very difficult to perceive on routine MRI sequences. Read more about MR angiography. The purpose of this study is to compare the image quality, including artifacts, of a T1-weighted gradient-recalled echo (GRE) MRI sequence with a radial sampling approach to that of both 2D turbo spin-echo (TSE) and cartesian 3D GRE MRI sequences performed in the head and neck region. 3 × 1. We compared a volumetric interpolated brain examination (VIBE) sequence with a magnetization-prepared rapid acquisition gradient echo (MP RAGE) sequence and a 2D T1-weighted spin-echo (SE) sequence. Jan 3, 2025 · The short TR, utilisation of uneven k-space sampling, and zero-filling interpolation in the section-select direction allow for high-resolution, isotropic images with an overall shortened scan time, 29 all ideal for contrast-enhanced imaging. 5-T Seimens scanner. 1 ⇓ –3 They can also provide 3D spatial representations of the enhancing part of the tumor for guiding treatment, biopsy planning, and/or allowing The T1 VIBE sequence has been shown equivalent to CT in demonstrating a defect and its use can result in a reduction in ionizing radiation exposure. 5-T scans were FOV 192 or 220 mm 2 depending on the head size, 224 slices, transverse orientation, a slice partial Fourier factor of 5/8, a flip For fetal imaging, the radial VIBE sequences yielded better image quality and lesion conspicuity, with fewer motion artifacts, than conventional breath-hold Cartesian-sampled T1W sequences. CAIPIRINA-VIBE sequence with 3D non-rigid registration. Patients with incomplete MRI sequences (n = 15) were excluded. 5T Seimens scanner. 2/2. Flow sensitive sequences. ast magnetic resonance imaging (MRI) examinations with high image quality set the stage for efficient and high-value MRI workflows (1). May 20, 2020 · Background To assess the feasibility of various magnetic resonance imaging (MRI) sequences for the detection of pulmonary nodules by comparing the detection rate of computed tomography (CT). Conventional MRI acquisition techniques often require long breath-holds for standard sequences like the volumetric interpolated breath-hold examination (VIBE), which can cause patient discomfort, motion artifacts, and workflow inefficiencies . VIBE provides high-quality T1-weighted and 3D MR colonography images for the evaluation of the normal and abnormal gastrointestinal tract in fetuses, and 3D MR colonography provides excellent delineation of the meconium. Population Sixty-three consecutive patients were prospectively enrolled between October Nov 1, 2024 · The results of this study show, that CS-VIBE is feasible for DCE-MRI in the head and neck region and provides both high temporal and spatial resolution with both robust perfusion data and excellent image quality. Methods Recently, a 3D volumetric interpolated breath-hold sequence (VIBE), which is a modified fast 3D gradient-echo sequence, has been applied to T1-weighted images in clinical body MRI [8-10]. As patients with pulmonary diseases have limited breath-hold capacities, this study investigates the clinical feasibility of non-Cartesian Spiral VIBE under free-breathing compared to CT as the gold standard. GRASP-VIBE is more prone to susceptibility artifacts than T1-TSE because the gradient recalled-echo sequence has no 180° refocusing pulse, which limits correction for large and fixed magnetic field inhomogeneities induced by metallic implants. We aimed to investigate whether DL-CAIPIRINHA-VIBE can improve image quality, vessel conspicuity, and lesion detectability compared to a standard Jun 23, 2023 · Although several studies have shown that the CS technique is useful for reducing the scan time when evaluating the vessel walls or neurovascular compression syndrome 18,23,24, CS-VIBE has not been used in various sequences other than the dynamic imaging of the liver or breast with a high spatio-temporal resolution 10,11,25. Background. These breath- Aug 23, 2022 · Accelerated or fast MRI techniques such as parallel imaging and/or compressed sensing (CS) can provide acceleration of MRI data acquisition. Dec 19, 2024 · Spondylolysis, commonly known as pars interarticularis defect or pars defect, is a defect in the pars interarticularis, the portion of the vertebral arch that connects the superior and inferior articular facets. 3 mm2 in-plane pixel size, 136 slices each 3. SUBJECTS AND METHODS. Read more about MR venography. Deep learning (DL) accelerated controlled aliasing in parallel imaging results in higher acceleration (CAIPIRINHA)-volumetric interpolated breath-hold examination (VIBE), provides high spatial resolution T1-weighted imaging of the upper abdomen. Methods Forty-two patients with pulmonary nodules detected by multi-slice CT (MSCT) were prospectively enrolled in the present study between November 2016 and February 2017. Materials and methods 3-T MRI and CT of 24 patients involving 70 pars interarticularis were retrospectively reviewed by four blinded radiologists. To prevent Jun 18, 2016 · To evaluate the impact of controlled aliasing in parallel imaging results in higher acceleration (CAIPIRINHA) volume interpolated breath-hold examination (VIBE) magnetic resonance imaging (MRI) technique on image quality, reader confidence, and inter-observer agreement for the assessment of focal liver lesions in comparison with the standard VIBE approach. The imaging datasets of CT (chest CT) and 18 F-FDG PET/MRI (HASTE, VIBE, StarVIBE sequence and PET alone) were analyzed on a dedicated OsiriX workstation (Pixmeo, SARL, Bernex, Switzerland) and evaluated by 4 readers, two board-certified radiologists with 7 and 8 years of experience in hybrid imaging and two residents with 3 and 4 years of The radial-volume-interpolated breath-hold examination (VIBE) sequence is a motion-robust fat-suppressed T1W sequence which has demonstrated value in paediatric and body imaging. We optimized the radial volumetric interpolated breath-hold examination (VIBE) sequence for qualitative T1-weighted images of the fetal brain with improved image contrast and reduced motion sensitivity Feb 15, 2018 · OBJECTIVE. All participants underwent both 3T MRI scanning, utilizing the radial VIBE Nov 30, 2022 · This article contains a list of commonly and less commonly used MRI pulse sequence abbreviations and their meaning. The kinetic parameter was visually assessed as follows: washout, plateau, and persistent. The StarVIBE sequence is a volumetric T1-weighted MR imaging sequence that enables abdominal, pelvic, and thoracic examination while patients continue to breath. 3 mm 2 in-plane pixel size, 136 slices each 3. 0 mm, flip angle 10 , TR 3. When included in a lumbar spine MRI protocol for lumbar stress injury, VIBE sequences can reduce the need for complementary diagnostic and follow-up CT imaging of the lumbar spine in a radiation sensitive population (Figures 1–3). If available, an explanation is included in a separate article. 0 T MRI and to find a liver MRI imaging method with faster scanning time, better image quality and less movement displacement. Volumetric interpolated breath-hold examination (VIBE) is a form of volumetric imaging using fast 3D gradient-echo sequences that produces T 1 images and was first introduced by Rofsky in 1999. 20 In head and neck MR imaging, significant susceptibility artifacts are often seen in the oral All time-resolved MRA methods have at their core a 3D-spoiled GRE sequence with thin slices, very short TRs and TEs, low flip angles, use of both read- and phase-conjugate symmetry, parallel imaging acquisition, and zero-interpolation filling in the slice direction. Specific k-space imaging parameters Nov 1, 2020 · With our MRI sequence, we could observe meniscus structure for segmentation and calculation of displacements. The radial VIBE sequence yielded improved overall image quality and lesion conspicuity in imaging of restless children. Simple proton spectroscopic imaging. 0 This GA-VIBE sequence is a hybrid radial sequence with radial k-space coverage in-plane and Cartesian coverage along the slice direction. We anecdotally find VIBE sequences are a useful adjunct in defining loose bodies from small osteophytes . Methods We prospectively included 58 patients for examination on a 3. VIBE sequences have high intrinsic tissue contrast between cortical bone and fatty marrow. The MA-CDT-VIBE sequence of MRI liver imaging improved the detection of dysplastic nodules in cirrhosis of the liver compared with routine liver MRI sequences. Dec 31, 2021 · This prospective study aimed to investigate the ability of spiral ultrashort echo time (UTE) and compressed sensing volumetric interpolated breath-hold examination (CS-VIBE) sequences in magnetic resonance imaging (MRI) compared to conventional VIBE and chest computed tomography (CT) in terms of image quality and small nodule detection. Breast MRI Using the VIBE Sequence Tozaki et al. The easiest way to identify T1 VIBE fat-saturated images is to look for adipose tissues in the body (e. In this pilot study, the authors assess the feasibility of a 5-minute high-resolution 3D golden-angle (GA) stack-of-stars radial volumetric interpolated breath-hold examination (VIBE) MRI sequence (GA-VIBE) to obtain clinically acceptable cranial bone images and identify cranial vault fractures compared to CT. The three-dimensional T1-weighted gradient recall echo volumetric interpolated breath-hold examination (VIBE) sequence is considered to be one of the most important sequences in liver examination due to the advantages of short scanning time, high signal-to-noise ratio and high spatial resolution [1–3]. Nov 24, 2021 · Background Detection of pulmonary nodules in MRI requires fast imaging strategies without respiratory motion impairment, such as single-breath-hold Cartesian VIBE. Nonetheless, multiple breath-holds are required to mitigate motion artifacts. References Ang EC, Robertson AF, Malara FA, O'Shea T, Roebert JK, Schneider ME, Rotstein AH. The acquired images can then be windowed and inverted to resemble CT. CS-VIBE – a Breakthrough in Ultrafast Dynamic Breast MRI Ritse M. Apr 30, 2021 · Purpose To evaluate the osseous anatomy of the proximal femur extracted from a 3D-MRI volumetric interpolated breath-hold (VIBE) sequence using either a Dixon or water excitation (WE) fat suppression method, and to measure the overall difference using CT as a reference standard. Sixty-five Aug 1, 2021 · VIBE sequences are characterised by lower signal characteristics of fluid compared to standard T 1 weighted images. A derivative of the FLASH sequence, VIBE allows dynamic and high-resolution imaging within a 30-second breath-hold. T1-weighted images are essential for evaluating fetal brain development. All MRI scans were independently analyzed by two studies have utilized the VIBE sequence to detect erosions of sacroiliac joint in patients with suspected axial SpA [11,12]. For children who could remain still, MP-RAGE yielded better image quality. Figure 4. , arteries and veins in the brain, neck, chest, abdomen, upper limbs, and lower limbs). 2. Feasibility of free-breathing T1-weighted 3D radial VIBE for fetal MRI in various anomalies Oct 8, 2019 · Over the 2017, 2018, and 2019 AFL seasons, retrospective review of MRI, including VIBE sequences of all players scanned for groin pain was undertaken by the club radiologist, a sports imaging specialist with 13 years of experience, including 11 years with the Fremantle Football Club. (Brief description of a 6-echo, 7-peak fat-modeling method offered by Philips for fat quantification and T2*-mapping, useful in liver imaging) Dixon WT. 5-T system using the volumetric interpolated breath-hold examination (VIBE) sequence. 3D sequences obtained after gadolinium-based contrast agent (GBCA) injection can illustrate BBB disruption in brain tumors. Nov 30, 2022 · This article contains a list of commonly and less commonly used MRI pulse sequence abbreviations and their meaning. , GRASS/FISP), flow sensitivity can be increased by using moderate-to-large flip angles. Pathologies with hypervascularization will appear bright on T1 VIBE post-contrast gadolinium images. Volumetric Interpolated Breath-hold Examination (VIBE) is a radio-frequency-spoiled 3D gradient echo (GRE) sequence utilized in magnetic resonance imaging (MRI) to create T1-weighted three-dimensional images employing interpolation and/or partial Fourier techniques. Methods Seventy-eight patients had undergone pre-contrast C-VIBE, followed by DCE-MRI with R-VIBE and post-contrast C-VIBE in the visualization of rectal cancer. 8 ms, TE1/TE2 1. Nov 23, 2012 · Because the morphologic appearance of the ductal system on MRI depends on spatial resolution , the 3D VIBE sequence, which allows high-spatial-resolution images with near-isotropic voxels to be obtained, is thought to be a useful sequence for breast MRI [9, 10]. MRI was performed on a 1. High resolution volumetric imaging of bone can be generated by VIBE MRI. METHODS Sep 24, 2019 · Purpose To compare conventional 3D volumetric-interpolated breath-hold examination (C-VIBE) sequence image quality to that of golden-angle radial stack-of stars acquisition scheme (R-VIBE) in rectal cancer patients. image weighting T1 T2 T2*: T2 star PD: proton density DWI: Mar 15, 2018 · We appreciate that MRI has limited sensitivity in the detection of loose bodies and oedematous and/or small loose bodies in complex joints, particularly when surrounded by synovitis, may be very difficult to perceive on routine MRI sequences. All other characteristics of the T1 VIBE fat-saturated images remain the same as the T1 VIBE images. In comparison to FLASH, VIBE maintains similar image quality (signal-to-noise ratio, contrast-to-noise ratio) while enhancing slice-selective spatial resolution (2 to 3 mm). Fracture configurations, signal intensities and anatomical parameters were Jun 20, 2023 · The total acquisition time was 5 min 48 s for conventional MPRAGE and 2 min 44 s for CS-VIBE 15. The purpose of our study was to evaluate its role in assessing the orbit and to compare it with routinely acquired sequences. MeSH Keywords: Contrast Media, Liver Abscess, Magnetic Resonance Imaging. 1). Material and methods This retrospective study reviewed imaging of adult patients with hip pain who underwent 3D hip Jun 20, 2020 · The MA-CDT-VIBE sequence of MRI liver imaging improved the detection of dysplastic nodules in cirrhosis of the liver compared with routine liver MRI sequences. 7 The imaging parameters of the GA-VIBE for both the 3-T and 1. 3D T1-weighted spoiled gradient echo sequence (VIBE) was acquired in expiration phase in axial plane, with Cartesian trajectory, centric reordering, without parallel imaging. This sequence may provide isotropic or nearly isotropic resolution in three dimensions while preserving wide anatomic coverage in a short acquisition time [ 8 Nov 30, 2022 · This article contains a list of commonly and less commonly used MRI pulse sequence abbreviations and their meaning. image weighting T1 T2 T2*: T2 star PD: proton density DWI: Sep 4, 2022 · Read more about diffusion weighted imaging. : Compared with VIBE, CAIPIRINHA-VIBE has a shorter acquisition time and allows thinner slices to be obtained. Objective: To compare free-breathing radially sampled 3D fat suppressed T1-weighted gradient-echo acquisitions (radial volumetric interpolated breath-hold examination VIBE ) with breath-hold (BH) and free-breathing conventional (rectilinearly sampled k-space) VIBE acquisitions for postcon-trast imaging of the liver. It usually occurs in the lumbar sp Dec 20, 2021 · Purpose To determine whether the pulmonary MR imaging with free-breathing radial 3D fat-suppressed T1-weighted gradient echo (r-VIBE) sequence can detect lung lesions and display lesion profiles with an accuracy comparable to that of computed tomography (CT), which is the reference standard in this study. Sep 10, 2016 · Objective To compare the diagnostic accuracy of 3-T magnetic resonance imaging (MRI) with thin-slice 3D T1 VIBE sequence to 128-slice computer tomography (CT) in pars stress fractures of the lumbar spine. This 3D WB MRI technique has been proposed as a reliable method for tumour staging, 4,30 with comparable Aug 31, 2023 · Objectives To assess how pars interarticularis fracture characteristics on T1-VIBE and STIR MRI relate to healing and identify anatomical parameters that may impact healing. Multipoint Dixon technique for water and fat proton and susceptibility imaging, J Magn Reson Imaging 1991;1:521‐530. 0-T MRI using a study protocol. Chest MRI was acquired within there is still a debate regarding which post-contrast T1-wieghted imaging sequence is the best4, 44 s for CS-VIBE 15. Unfortunately due to the limitations of MRI technology at that time, the sequence was prone to significant artifacts and was not implemented widely until two decades later when many refinements of the technique were created. 6-0. The easiest way to identify T1 VIBE post-gadolinium images is to look for blood vessels in the body (e. The purpose of our study was to evaluate the feasibility of using fat-suppressed 3D volumetric interpolated breath-hold examination (VIBE) as a substitute for fat-suppressed 3D FLASH in cartilage MRI. Women’s Imaging • Original Research Breast MRI Using the VIBE Sequence: Clustered Ring Enhancement in the Differential Diagnosis of Lesions Showing Non-Masslike Enhancement Mitsuhiro Tozaki1,2 Takao Igarashi2 Kunihiko Fukuda2 Tozaki M, Igarashi T, Fukuda K Half-Fourier-Acquired Single-shot Turbo Spin Echo (HASTE) is a turbo spin-echo technique used for the sequential acquisition of high-resolution T2-weighted images. The fracture morphology (complete Dec 20, 2021 · In this study, we established that r-VIBE (MRI) sequence is a free-breathing method that can detect pulmonary nodules with satisfactory accuracy; therefore, r-VIBE (MRI) sequence is as an alternative imaging technique, which shows 100% sensitivity in detecting solid nodules with a diameter greater than 6 mm. Jan 20, 2022 · Background Faster and motion robust magnetic resonance imaging (MRI) sequences are desirable in fetal brain MRI. GRASP (A) was applied to a volumetric interpolated breath-hold Aug 17, 2017 · IMAGING Tozaki et al. Mann; Suzan Vreemann Radboud University Medical Centre, Department of Radiology, Nijmegen, the Netherlands Abstract In this article we present a compressed sensing (CS) – volume-interpolated breath-hold examination (VIBE) sequence1 as a new approach for ultrafast dynamic parameters were used for the Dixon-VIBE soft-tissue AC sequence: par-allel imaging acceleration factor R = 5; matrix 390 × 240 with 1. It should also be noted that although fast imaging alone is not a method for motion management, it can help by shortening image acquisition time and, thus, improving image quality ( 11 ) ( Fig 3 ). The acquisition time of these two sequences were 2 minutes 42 Jan 8, 2020 · OBJECTIVE. Apr 22, 2022 · OBJECTIVE Head trauma is the most common indication for a CT scan. Jul 1, 2019 · Postcontrast MR imaging plays a fundamental role in brain tumor diagnosis, anatomic delineation, and treatment response. MATERIALS AND METHODS. It may be acquired in a very short time in two imaging planes and may also be used to detect cardiac thrombus. However, the ac-quisition times of VIBE sequences for imaging joints and bones has typically been relatively long, about 3−5min to achieve a 0. MRI. Imaging analysis. Liver cirrhosis is a late-stage development in various chronic liver diseases. Nov 25, 2022 · Volumetric interpolated breath-hold examination (VIBE) is an MRI sequence that is increasingly being used by Sports and Exercise Medicine (SEM) clinicians, to evaluate sports injuries in radiation-sensitive populations (1). Fat-suppressed 3D VIBE and fat-suppressed 3D FLASH were prospectively performed in 82 patients. Feb 28, 2024 · It is often used in sequences such as 3D VIBE 3 , 3D magnetic resonance cholangiopancreatography (MRCP) , and diffusion-weighted imaging (DWI), allowing ultrafast abdominal imaging. The purpose of this study was to evaluate the usefulness of radially sampled 3D fat-suppressed T1-weighted gradient-echo sequences (radial volumetric interpolated breath-hold examination [radial VIBE]) for contrast-enhanced brain MRI of children through comparison with a magnetization-prepared rapid-acquisition gradient-echo (MP-RAGE) sequence. Feb 15, 2018 · We found that the radial VIBE sequence reduces motion-related artifacts in brain imaging. Gradient echo (GRE) imaging constitutes a classic technique for fast acquisi-tion in abdominal MRI (2,3). METHODS Patients Sep 24, 2020 · Objectives Conventional perfusion-weighted MRI sequences often provide poor spatial or temporal resolution. Blood vessels and pathologies with high vascularity appear bright in T1 VIBE post-gadolinium images. T 1 vibe has traditionally been utilized in abdominal, breast, and brain imaging, but Magnetic resonance imaging (MRI) is widely used in the examination of various liver diseases. All MRI scans were independently analyzed by two radiologists (10 years of OBJECTIVE. 4 ms, TA 10. For steady-state GRE sequences (e. Materials and methods 2. Large flip angles accentuate the signal from flowing blood or CSF for two reasons: (1) they cause more saturation of stationary tissue, and when unsaturated spins flow in, a greater contrast between moving and static tissue can be appreciated; and (2) large flip angles The purpose of this study is to compare image quality and liver lesion detection on a shorter duration T1-weighted VIBE sequence using the controlled aliasing in parallel imaging results in higher acceleration (CAIPIRINHA) technique with the conventional T1W GRAPPA-VIBE sequence during a single liver MRI session on a 1. Sep 27, 2024 · The sequence was first described by the American physicist William Thomas Dixon (1945-2022) 4 in 1984 2. Objective: The purpose of this study was to evaluate the usefulness of radially sampled 3D fat-suppressed T1-weighted gradient-echo sequences (radial volumetric interpolated breath-hold examination [radial VIBE]) for contrast-enhanced brain MRI of children through comparison with a magnetization-prepared rapid-acquisition gradient-echo (MP-RAGE) sequence. 7mm slice thickness [11,20,26] which may limit its utility for clinical Following scan parameters were used for the Dixon-VIBE soft-tissue AC sequence: parallel imaging acceleration factor R = 5; matrix 390 × 240 with 1. We aimed to overcome this problem in head and neck protocols using a golden-angle radial sparse parallel (GRASP) sequence. 0 mm, and acquisition of 72 transversal slices Explore MRI acronyms across vendors like Siemens, GE, Philips, Canon, and Hitachi, detailing cross-vendor MRI sequence terminology and info. Magnetic resonance imaging (MRI) plays a crucial role in diagnosing pathologies of the upper abdomen. Glover G. The retrospective study included 26 datasets of patients who underwent MRI 2019, resulting in a dataset of 245 liver MRI (Fig. blood flow) often without the need for intravenous contrast. 6 s per bed position. Volumetric Interpolated Breath-hold Examination (VIBE) sequence is a recently developed fat-suppressed 3D-FLASH sequence, which permits dynamic and high-resolution imaging under breath-hold. g. MRI is an excellent diagnostic tool in the imaging of sports-related musculoskeletal pathology; however, standard slice thickness acquisitions can lack the spatial resolution to accurately define and characterise osseous abnormalities. sitszvkeydktnjtqaeqvzperquvkfnhvkbukuqskatgjxj