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. [...]