MRI features of primary rare malignancies of the liver: A report from four university centres.

Purpose: To determine if rare primary malignancies of the liver may have consistent features on magnetic resonance imaging (MRI).

Materials And Methods: This IRB-compliant retrospective study reviewed the records from the pathology departments of four university centres over an 11-year period from 2005-2016 to identify rare primary malignant tumours, which were cross-referenced with MRI records. MRI studies of these patients were reviewed to determine if these tumours exhibited consistent and distinctive features.

Magnetic resonance imaging of acute appendicitis in pregnancy: a 5-year multiinstitutional study.

Objective: The purpose of this study was to determine the diagnostic performance of magnetic resonance imaging (MRI) in the diagnosis of acute appendicitis during pregnancy in a multiinstitutional study.

Study Design: In this multicenter retrospective study, the cases of pregnant women who underwent MRI evaluation of abdominal or pelvic pain and who had clinical suspicion of acute appendicitis between June 1, 2009, and July 31, 2014, were reviewed. All MRI examinations with positive findings for acute appendicitis were confirmed with surgical pathologic information.

Incremental value of color coding in 3D volume rendered CT images for interpretation of complex cardiothoracic vascular malformations.

Objectives: To evaluate the benefit of color coding of CT angiography images for the assessment of complex cardiovascular malformations by comparing the quality of 3D (dimensional) volume rendered (VR) images before and after vessel color coding.

Methods: Cardiothoracic CT images of 34 patients with complex vascular malformations were retrospectively selected for post processing. 3D VR images were created without and after color coding of the target vessels.

Cardiac resynchronization therapy: double cannulation approach to coronary venous lead placement via a prominent thebesian valve.

We report identification of a prominent Thebesian valve by cardiovascular computed tomography (CT) angiography impeding cannulation of the coronary sinus, with subsequent successful coronary venous lead placement with cannulation of the coronary sinus ostium via a transvenous femoral vein approach and subsequent cannulation of the ostium with the coronary venous lead with a left subclavian approach. A 57-year-old man with nonischemic dilated cardiomyopathy, New York Heart Association Class III heart failure, left bundle branch block, and an ejection fraction of 15%, underwent an attempted cardiac resynchronization therapy implantable cardiac defibrillator (ICD). As the coronary sinus ostium could not be cannulated, a dual chamber ICD was placed.

The new staging system for lung cancer: imaging and clinical implications.

Accurate staging of lung cancer is necessary to describe and communicate disease extent, predict prognosis, determine therapy, and evaluate the results of clinical trials. The Union Internationale Contre le Cancer and the American Joint Committee on Cancer published the seventh edition of tumor, node, and metastasis in lung cancer in 2009. Changes to the sixth edition have been based on the analysis of a large database of patients with lung cancer by the International Staging Committee of the International Association for the Study of Lung Cancer.