Launch of the world’s first 7 T MR platform intended for clinical use (Siemens)

Erlangen, Germany, May 31, 2015 — Siemens announced at the Toronto ISMRM (International Society for Magnetic Resonance in Medicine) meeting the launch of the world’s first 7 T MR platform intended for clinical use. Important advances include a new, light, actively shielded magnet with zero helium boil-off and dual operating modes, enabling rapid switching between research […] [...]

Case Report: Assessment of Renal Allograft Function with DTI and Tractography

This case report demonstrates that DTI and tractography is a promising way to quantitatively and visually assess renal allograft function after kidney transplantation. Download/View PDF   [...]

Clinical Case: 3 Tesla MR Neurography-Guided Posterior Femoral Cutaneous Nerve Block

The high SNR available at 3T provides the ability to perform high-resolution MR neurography-guided perineural injections for highly accurate visualization of small nerve as well as needle targeting and perineural injection. This case report demonstrates how this techniques facilitates accurate targeting of the PFCN.  Download/View PDF [...]

fit-Upgrade: A Success Story

The fit-upgrade for 1.5 and 3T systems remains an economically attractive approach for an aged MR system. By improving system performance and workflow, the number of examinations can be increased, together with improved image quality, with little effort. Download/View PDF [...]

Acute and chronic vertebral compression fractures

An 83 year old woman with back pain. [...]

C3 burst fracture

A 77 year-old woman seen in the emergency room, following trauma, with cervical pain but no neurologic deficit. [...]

First Experiences with the Whole-Body Dot Engine

Whole-body MRI is beneficial in many clinical scenarios including bone marrow, infectious and rheumatic diseases. The Whole-Body Dot Engine provides fast and robust image quality across all patients, with fewer errors or need for repeated examinations. It ensures that all stations of a multi-station examination are performed with a consistent FOV and spatial resolution while […] [...]

Val M. Runge, MD – ASNR 2015 – Pearls and Pitfalls in Neuroradiology of Cerebrovascular Disease – The Essentials with MR and CT

This educational exhibit was presented at the ASNR 2015 meeting, with imaging performed on a 3 T Siemens Skyra MR system. The full reference for the exhibit is given below. Runge V, Smoker W, Valavanis A. Pearls and Pitfalls in Neuroradiology of Cerebrovascular Disease – The Essentials with MR and CT. ASNR 53rd Annual Meeting, […] [...]

Oligodendroglioma (WHO grade II)

A 30 year old man referred to Neurosurgery for a mass lesion (of the brain) revealed by imaging at an outside hospital. [...]

Medulloblastoma (posterior fossa PNET)

A 7 year-old boy who presents with nausea and vomiting. [...]

Val M. Runge, MD – ASNR 2015 – Simultaneous Multi-Slice (Slice Accelerated) Diffusion EPI

This educational exhibit was presented at the ASNR 2015 meeting, with imaging performed on a 3 T Siemens Skyra MR system. The full reference for the exhibit is given below. Runge V, Richter J, Beck T, Piccirelli M, Valavanis A. Simultaneous Multi-Slice (Slice Accelerated) Diffusion EPI. ASNR 53rd Annual Meeting, April 25-30, 2015, Chicago, Illinois […] [...]

Val M. Runge, MD – Editorial – 50th anniversary issue of Investigative Radiology

ZURICH, May 12, 2015 — Val M. Runge, MD, editor-in-chief of Investigative Radiology, one of the world’s leading scientific journals in the field of imaging, previews in his editorial the upcoming anniversary issue of the journal. The 50th anniversary issue focuses on research (reflecting the very basis of the journal), specifically on the current top fields in clinical imaging, […] [...]

Disk space infection (L2-3)

A 70 year-old woman with chronic kidney disease, on IV antibiotics for osteomyelitis. [...]

Val M. Runge, MD leads 50th anniversary issue of Investigative Radiology

ZURICH, April 6, 2015 /PRNewswire-iReach/ — Val M. Runge, MD, editor-in-chief of Investigative Radiology, one of the world’s leading scientific journals in the field of imaging, previews the upcoming anniversary issue of the journal. Scheduled to be published in September 2015, the issue includes 11 landmark articles, with the first already available on line (published ahead-of-print). (full […] [...]

Metastasis (breast carcinoma)

A 64 year-old woman with a history of breast cancer, presenting with weakness [...]

Practical Considerations for the Evaluation of the Neuroforamina in Routine Spine Imaging at 3T. A Case Series

Pathologies of the neuroforamina are one of the most frequent indications for spine surgery. However, in standard MRI with axial and sagittal planes and relatively thick slices (>3 mm) the diagnostic information may be limited for proper evaluation of the nerve roots. Prof. Marc-André Weber et al. (University Hospital Heidelberg, Germany) share practical tips on […] [...]

Pituitary microadenoma (prolactinoma, treated)

A 31 year-old woman with long-standing infertility, who prior to treatment presented with galactorrhea, now on cabergoline. [...]

Pituitary macroadenoma, with invasion of the left cavernous sinus

A 58 year old woman presenting with a visual field defect (bitemporal hemianopsia) [...]

Parenchymal hemorrhage, late subacute

A 68 year-old woman several weeks following a stroke. [...]

Periventricular leukomalacia

A 3 year-old girl, product of in vitro fertilization (with a normal twin), delivered by c-section at 30 weeks. She is mildly developmentally delayed, with spastic diplegic/triplegic cerebral palsy. [...]

Metastases (renal cell, lumbar)

A 56 year-old man with back pain [...]

Cavernous malformation

A 60 year-old woman with myelopathic symptoms, status/post cervical decompression, with follow-up cervical MR revealing a lesion in the pons. [...]

Intraductal papilloma

A 60 year-old woman with myelopathic symptoms, status/post cervical decompression, with follow-up cervical MR revealing a lesion in the pons. [...]

Intraductal papillary carcinoma

A 60 year-old woman with myelopathic symptoms, status/post cervical decompression, with follow-up cervical MR revealing a lesion in the pons. [...]

Invasive lobular carcinoma

A 60 year-old woman with myelopathic symptoms, status/post cervical decompression, with follow-up cervical MR revealing a lesion in the pons. [...]

Silicone lymphadenopathy

A 60 year-old woman with myelopathic symptoms, status/post cervical decompression, with follow-up cervical MR revealing a lesion in the pons. [...]

Musculoskeletal Imaging at 3T with Simultaneous Use of Multipurpose Loop Coils

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. [...]

MRI Assessment of Articular Cartilage Repair

The evolution of sophisticated surgical repair procedures for the treatment of isolated, focal traumatic or degenerative cartialge lesions has created the need for accurate, non-invasive assessment of the repair tissue. MRI depicts well subchondral bone and bone marrow, allowing examination of repair tissue and its interface with parent cartilage and complications of repair surgeries such as graft hypertrophy and delamination. [...]

syngo WARP – Metal Artifact Reduction Techniques in Magnetic Resonance Imaging

The term WARP summarizes methods to minimize the impact of metal implants on MR image quality. This article introduces different techniques such as high bandwidth, VAT and SEMAC. [...]

MSK Imaging Tips and Tricks

Mark Lourensz from the MRI Department at St. Vincent’s Hospital in Melbourne, Australia shares tips and tricks on a broad range of musculoskeletal topics extending from standard joint MRI to whole limb tumor evaluation. Some of these may be common sense, but it doesn’t hurt to revisit the basics occasionally. [...]

Job’s Syndrome

Contrast-enhanced MR imaging is a particularly sensitive method for detecting soft-tissue masses, providing as well precise localization and definition of extent. In his case report, G. Hadjidekov et al. (Sofia, Bulgaria) presents a rare immunodeficiency disorder known as Job’s syndrome. The case shows the usefulness of MRI to analyze skin disorders and deeper soft-tissue masses in various locations. [...]

Bone and Soft Tissue Tumor Imaging: An Overview

Tumor imaging can be daunting, given the high stakes involved with a missed diagnosis or mis-diagnosis resulting in unnecessary further investigations, biopsies or even surgeries. In their article Marcus Pianta, Mark Lourensz et al. (St. Vincent’s Hospital, Fitzroy, Australia) describe their routine imaging protocol targeted to bone and soft tissue lesions, describe reporting and what the referring physicians need to know. [...]

MR Neurography – Diagnostic Criteria to Determine Lesions of Peripheral Nerves

MR Neurography is an excellent technique for visualization and evaluation of peripheral nerve disorders. In their article Philipp Bäumer et al. (Heidelberg University Hospital, Heidelberg, Germany) show high resolution intra-neural fascicular detail in both normal and abnormal states and cover different aspects including clinical indications, protocols, pitfalls, and useful applications. [...]

Toxoplasmosis

A 30 year-old woman with HIV [...]

Faster Abdominal MRI Examinations by Limiting Table Movement

The article shows how to reduce total examination time of a non-contrast liver MRI/MRCP by up to 20% with no observable change in image quality. It presents a scanning protocol which prohibits table movement, particularly time-consuming shim data, throughout the course of the examination. [...]

Sinding-Larsen-Johansson Disease

An 11-year-old female patient presented with pain in the left knee during extension and flexion manoeuvres of the knee following horseback exercises. Based on physical examination, a partial rupture of the left patellar ligament was suspected. In his case report, Axel Goldmann, MD (Orthopedic Center, Erlangen, Germany) describes the MRI findings of rarely seen SLJ disease. [...]

Brain Perfusion; How & Why

Pathologic perfusion is sometimes the reason and often the consequence of brain pathologies. Evaluation of perfusion with dynamic susceptibility-weighted imaging is a well understood and established method to evaluate these changes. In this article, Binesh et al. (Cedars Sinai Medical Center, Los Angeles) show step-by-step how they apply this method and present four case reports illustrating the usefulness of perfusion imaging in clinical practice. [...]

Introduction to Advanced Techniques in MR Neuroimaging

Neurology is the largest field of application for MRI. In their article the authors give a comprehensive introduction to advanced techniques in neuroimaging. Learn more about fMRI, DTI, DWI, ASL, SWI and many other techniques that go beyond standard imaging. [...]

Simplifying the Workflow of Long Bone Imaging for Short Bore Systems

Imaging of long bones on 1.5T short bore systems can be challenging at times for technologists. This article provides tips that will make long bone imaging easier to acquire. [...]

MRI of the Shoulder: Utilizing the Glenoid Clockface Orientation

Orthopedic surgeons describe the glenoid fossa as the face of a clock, with the longitudinal axis defined by the supraglenoid tubercle at the 12:00 position and the inferior margin of the glenoid at the 6:00 position. Orienting the shoulder MRI exam relative to this clockface is ideal as it results in images which consistently correspond with the arthroscopists’ perspective and optimally profiles the major anatomic structures of the glenohumeral joint. In this article, Steven D. Needell, M.D. describes how to use the technique and shows its advantages in clinical cases. [...]

CMR Imaging of Profound Macrovascular Obstruction

Cardiac cine imaging of the myocardium, dynamic first pass myocardial perfusion imaging, and delayed myocardial enhancement imaging are presented in a patient with macrovascular obstruction. [...]

Techniques in Pediatric MRI – Tips for Imaging Children

This paper provides an overview of the challenges that pediatric patients raise in the MR setting, and some of the different techniques that may be employed to overcome these difficulties. [...]

Long Bone Imaging

In this step-by-step guide divided in two articles, James Hancock of Benson Radiology in Adelaide, Australia, shows how to image the distal and proximal lower limbs using the Tim User Interface. This demonstration takes you through an examination including positioning the patient, running the localizers, and setting up fields-of-view and slice positions. Helpful tips and screenshots make this a valuable tool. [...]

Clinical Lung Imaging

MRI of the lung can be applied in a variety of clinical scenarios. It is a feasible alternative to CT– as it avoids unnecessary radiation in young patients and provides additional physiological information such as perfusion or respiratory dynamics. Diffusion-weighted imaging can even add biological information about cell density. In this report, Professor Biederer (University Hospital Kiel, Germany) gives a detailed review on lung imaging protocols and an insight into typical applications for lung MRI. [...]

MAGNETOM Skyra: The Mannheim Perspective

For over one year the 3T MAGNETOM Skyra has been used for scientific projects and clinical imaging at the University Medical Center (UMM) Mannheim. The UMM Mannheim was the first site in the world to install the Skyra. [...]

Cerebral Amyloid Angiopathy (CAA) using Susceptibility-Weighted Imaging (syngo SWI)

Susceptibility weighted imaging well demonstrates microhemorrhages within the brain. In CAA, these involve the cortex and subcortical white matter within the frontal and parietal lobes. This is in distinction to hypertensive microangiopathy, where microhemorrhages occur in deep white matter as well as infratentorially. [...]

3T MR Imaging of Peripheral Nerves Using 3D Diffusion-Weighted PSIF Technique

High-resolution magnetic resonance (MR) Neurography is a novel imaging technique, which enables multiplanar imaging of peripheral nerves, as well as diagnosis and localization of entrapment and non-entrapment peripheral neuropathies related to etiologies, such as inflammation, tumor and trauma. [...]

MR Tumor Staging for Treatment Decision in Case of Wilms Tumor

Nephroblastoma – also known as Wilms tumor – is the most frequent renal malignancy in childhood with the highest incidence of this tumor within the fourth year of life. 80% of patients are less than 5 years old, however it is a rare condition in neonates ([...]

Imaging of Diseases of the Cranial Nerves: Tips and Tricks

This article focuses on common problems and pitfalls in MRI of pathologies of cranial nerves. It provides an introduction to helpful sequences and post processing techniques. To familiarize the reader with cranial nerve imaging, examples of the normal anatomy as well as typical pathological cases are shown. [...]

Assessment and Classification of Peripheral Vascular Anomalies by Time-Resolved MRA using TWIST.

Vascular malformations (VM) are complex lesions present in various anatomical locations with a variety of clinical manifestations. Time-resolved MRA combined with parallel imaging and echo sharing schemes offer a reasonable alternative to more invasive diagnostic methods such as digital subtraction angiography (DSA) in evaluation of VMs. MRI is becoming the imaging modality of choice in assessing morphological issues regarding VMs. Time-resolved MRA can play an important role in characterizing these lesions and can influence therapeutic decision-making. [...]

Advantages of MSK Imaging at 3 Tesla with special focus on Spine and Tumor Imaging.

The clinical advantages of upgrading to higher field strength (3T) magnets, improving coil technology, and using larger bore-sizes are proving to be significant. Through 10 case studies, it is suggested that the use of 3T open bore system with TrueForm technology can improve the diagnostic potential, as well as widen the indications, of MRI. The cases illustrate advantages of musculoskeletal imaging with a special focus on spine and tumor imaging. [...]

Image Quality Improvement of Composed MR IMages by Applying a Modified Homomorphic Filter.

Currently when obtaining systematic aspects of diseases with MRI, acquiring information from large body regions requires large fields-of-view (FOV) and multi-channel coils. However, images with large FOVs are characterized by inhomogeneous signal. This becomes even more problematic at higher field strengths. By using a simple and robust post-processing approach, the signal inhomogeneity can be improved in times when large FOVs need to be obtained. [...]

Takotsubo Cardiomyopathy

This 70-year-old woman presented to the emergency room with acute onset of severe chest pain. No prior history of trauma. The pain started after a quarrel with her 45-year old daughter. The electrocardiogram did not reveal evidence of ischemic ST segment deviations. Creatinine kinase was of borderline value (10 U/L), but cardiac troponin T was elevated (2.15 µg/L). Coronary artery disease was ruled out by emergency coronary angiography. However, left ventricular angiography demonstrated apical ballooning with a reduced left ventricular ejection fraction. [...]

Susceptibility-Weighted Imaging (syngo SWI) at 3T.

This is a pictorial review of susceptibility- weighted imaging (syngo SWI) using a MAGNETOM Trio system with software version syngo MR B15 and a 32-channel head coil at The Geelong Hospital, Victoria, Australia. syngo SWI is a 3D FLASH sequence that is flow compensated in slice, read and phase directions. [...]

AVM (within the third ventricle)

A 21 year-old man, presenting with syncope [...]

Multiple myeloma

Back pain in a 58 year old woman [...]

Synovial cyst

Back pain in a 58 year old woman [...]

Tethered cord

Back pain in a 58 year old woman [...]

Hepatic Hemangioma

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

Definition and Clarification of TR in Modern Imaging, with Emphasis on Cardiac Applications

As MR has evolved, the definition of TR has become quite complex, particularly with gated sequences. This article begins with an introduction to TR, covering its definition in spin echo and multislice fast spin echo sequences, and subsequently discusses in depth its definition in the plethora of cardiac gated sequences employed in modern imaging. [...]

Germinoma

A 22 year-old woman presents with a suprasellar mass on CT [...]

Oligoastrocytoma (WHO grade 2)

A 23 year old man presenting with a mass lesion on CT [...]

Posterior reversible encephalopathy syndrome (PRES), also known as acute hypertensive encephalopathy

A 25 year-old woman on chemotherapy, with hypertension and visual symptoms [...]

Carotid artery pseudoaneurysm

Trauma [...]

Septo-optic dysplasia

A five year-old boy with hydrocephalus and pituitary dysfunction [...]

Left temporal lobe arteriovenous malformation (AVM)

A 31 year old woman [...]

Glioblastoma Multiforme (left parietal)

A 57 year old man presents with a mass lesion on CT, with MR performed for differential diagnosis and better delineation of the lesion. [...]

Posterior cerebral artery infarct (early subacute)

A 79 year old man presents with symptoms of a cerebrovascular accident [...]

Lumbar vertebral metastases

A 61 year old man with small cell carcinoma of the lung [...]

Multiple sclerosis (cervical spinal cord)

A 28 year old woman [...]