Clinical Feasibility of Gadoxetic Acid–Enhanced Isotropic High-Resolution 3-Dimensional Magnetic Resonance Cholangiography Using an Iterative Denoising Algorithm for Evaluation of the Biliary Anatomy of Living Liver Donors

The purpose of this study was to evaluate the clinical feasibility of isotropic high-resolution 3D-T1W-MRC using iterative denoising in comparison with conventional 3D-T2W-MRC for evaluation of the biliary anatomy of living liver donors. [...]

Automated Fast Liver MR Scan: A Preliminary Evaluation

Moyamoya disease requires follow-up for a long period of time, and ASL is very well suited for the evaluation of this disease. The multi-PLD PCASL is significant as a screening tool because it provides information on whole-brain perfusion distribution in a 3D rCBF map as well as information on pseudo hemodynamics. [...]

Fast and efficient liver imaging with Primovist®/Eovist®

This liver workflow makes better use of the time between the dynamic and liver-specific phases – by shifting the time consuming acquisition of high-res T2w images and DWI to after the contrast injection and – by shortening the delay between contrast dynamics and the acquisition of hepatobiliary phase images. The protocols allow to perform a complete Primovist liver exam in a 30-minute exam slot. [...]

MAGNETOM Sola: Adaptive and anticipatory, predictive and profitable

Shortening average examination times by 50% – the first experiences with 1.5T MAGNETOM Sola with BioMatrix technology are presented in this article. [...]

Diffusion and perfusion MR parameters to assess preoperative short course radiotherapy response in locally advanced rectal cancer: a comparative explorative study among parameters derived from standardized index of shape DCE-MRI, intravoxel incoherent motion, and diffusion kurtosis imaging

To assess preoperative Short Course Radiotherapy (SCR) tumor response in locally advanced rectal cancer (LARC) by means of parameters derived from Standardized Index of Shape (SIS) dynamic contrast enhanced (DCE) MRI, Apparent Diffusion Coefficient (ADC), Intravoxel Incoherent Motion and Diffusion Kurtosis Imaging derived parameters by diffusion weighted (DW) MRI. [...]

Dynamic contrast-enhanced magnetic resonance imaging, diffusion kurtosis imaging, and intravoxel incoherent motion diffusion weighted imaging: MRI functional parameters in the assessment of pancreatic cancer

To evaluate the diagnostic potential of perfusion parameters derived from dynamic contrast-enhanced MR imaging (DCE-MRI), diffusion kurtosis imaging (DKI), and parameters derived from the intravoxel incoherent motion model (IVIM)-based diffusion weighted imaging (DWI) in differentiating between pancreatic tumors and normal pancreatic parenchyma. [...]

Imaging of the Pancreas: Technique and Clinical Applications

The article describes the experiences with REMyDI (Rapid Estimation of Myelin for Diagnostic Imaging), a method of myelin detection in the brain, using a scan time of approximately 6 minutes. [...]

Evaluation of Transient Motion During Gadoxetic Acid–Enhanced Multiphasic Liver Magnetic Resonance Imaging Using Free-Breathing Golden-Angle Radial Sparse Parallel Magnetic Resonance Imaging

Transient motion developed in 40% of patients shortly after gadoxetic acid administration, and gated free-breathing T1WI using GRASP was able to consistently provide acceptable arterial phase imaging in patients who exhibited transient motion. [...]

MR-Guided Biopsies of the Prostate in Supine Patient Position

The article shows that targeted biopsies of the prostate under direct MRI-guidance are a reasonable complement to ultrasound biopsy techniques. The presented cases show that exact targeting of the most suspicious portion of a tumor is crucial for correct classification and consequently best therapy decisions. Especially in case of relatively small lesions, direct MR-guidance has clear advantages over fusion techniques. [...]

Case Series: Utilization of the Pediatric 16 Coil for 1.5T and 3T Systems

In this article we share some of our experiences over the last few years with MR upgrades. [...]

Right renal angiomyolipoma

Clinical History: 59-year old woman with right lower back pain for more than one year   Diagnosis: Right renal angiomyolipoma   MR Technique: Upper abdominal imaging was performed on a 3T MR system. (A, B) Axial T1-weighted VIBE in- and out-of-phase (TR/TE 3.88/1.27ms), and (C) axial FS T2-weighted TSE (TR/TE 5814/78ms, with respiratory triggering) scans […] [...]

MAGNETOM Aera – Combining Throughput and Highest Quality MRI in an Optimized Clinical Workflow

This paper shows how the simultaneous use of multipurpose loop coils in MRI allows high-resolution musculoskeletal studies with increased contrast and specificity for assessing muscles, tendons, ligaments, joints, and cartilage. Dr. Ferrer presents a number of different daily patient routine examinations, including specifically evaluation of the carpal bones, the thumb metacarpals, the metacarpals, the distal inter-phalangeal joints, the elbow and ankle. [...]

Hepatic Hemangioma

A 55 year old woman with an incidental finding on an MRI of the thoracic spine. [...]

Hepatocellular Carcinoma-2

This 54 year old woman presented to the gastroenterology clinic complaining of abdominal pain. A right upper quadrant ultrasound was performed demonstrating an ill-defined hypoechoic hepatic mass. MRI was recommended for further evaluation. [...]

Subcapsular/extracapsular hematoma

This is a 54-year-old Caucasian male with a past medical history of polymyositis and recent outside hospital admission for biliary tree obstruction with subsequent ERCP, cholecystectomy, and liver biopsy. He was admitted to our institution with elevated LFTs and abdominal pain. [...]

Multiple Arterial Stenoses

This 63-year-old man presented with a longstanding history of peripheral arterial occlusive disease, hypertension, diabetes, coronary artery disease, prior myocardial infarction, crossover bypass, and renal artery stenosis with increasing leg pain. [...]

Two liver lesions – hemangioma and focal nodular hyperplasia

This is a 38 year old female who had a CT performed for nonrelated reasons, but had incidentally detected liver masses. An MRI was ordered for further workup. [...]

Fat Suppression in the Abdomen

Due to the different chemical environment, hydrogen nuclei in water- and in fat-tissue have different values for some MRI-relevant parameters, mainly being the relaxation time and the resonance frequency (chemical shift). These differences can be used to selectively suppress/reduce the signal of fat bound protons.Thus relaxation-dependant and chemical shift-dependant methods can be used for fat suppression. [...]

Spectral Adiabatic Inversion Recovery (SPAIR) MR imaging of the Abdomen

SPAIR (Spectral Adiabatic Inversion Recovery) is a powerful technique for fat suppression which offers advantages over conventional fat suppression techniques. The technique is insensitive to B1 inhomogenities and only fat spins are suppressed/inverted. [...]

Revisiting Liver Imaging with VIBE

Volume Interpolated Breath-hold Examination (VIBE) offers three-dimensional multiphase image acquisition before and following contrast administration on a breath-hold time scale. The dynamic behavior of liver lesions and structures during the precontrast, arterial, portal venous, early equilibrium and 5-minute delayed equilibrium phases of enhancement allows more accurate characterization than static pre- and postcontrast analysis. [...]

Detection and Characterization of Focal Liver Lesions using Respiratory-Triggered Diffusion- Weighted MR Imaging (DWI)

Due to a number of technical challenges, the use of DWI was initially confined to the brain with its low incidence of movement artifacts and the high homogeneity and signal-to-noise ratio (SNR) of brain tissue. Physiological motion artifacts (e.g. motility of the bowel, cardiac pulsation, respiratory motions) and the heterogeneous composition of many extracranial organs had precluded the application of DWI in body imaging until a series of technologic advances such as the development of echo-planar imaging (EPI), high-gradient amplitudes, multichannel coils and parallel imaging techniques enabled the acquisition of high quality diffusion-weighted images of the body. [...]

Large FOV Imaging at 3T with a 32-Channel Body Array Coil

This article shows the benefits of a 32-channel body coil for large field-of-view imaging in the abdomen and pelvis, including MR Angiography. The evolution of parallel imaging techniques has been very rapid, with realization of their full potential requiring development and utilization of MR systems with up to 32 receiver channels. [...]