CT findings of an incidental segmental aplasia of the caudal vena cava with azygos continuation in a guinea pig ().

Background: Segmental aplasia of the caudal vena cava (CVC) with azygos continuation is a congenital malformation macroscopically described in mammals including humans, dogs, and rodents. It is usually detected as an incidental finding and the final diagnosis is reached by computed tomography (CT), fluoroscopy, or post-mortem dissection.

Case Description: A 3-year-old guinea pig () presented with subacute dyspnea.

CT findings in seven dogs with perforating wooden skewer foreign bodies from the gastrointestinal tract.

Background: Perforating foreign bodies from the gastrointestinal tract, such as wooden skewers, are reported in the small animal literature producing inflammatory/infectious lesions in the thorax, abdomen, and musculoskeletal system, which can be life-threatening in some instances. Several imaging modalities have been used, and advanced imaging techniques have shown a great advantage in its diagnosis and pre-surgical planning.

Aim: The objective of this study is to describe the computed tomographic findings in a group of seven medium to large breed dogs with perforating wooden skewers and foreign bodies migrated from the gastrointestinal tract.

Group 2 innate lymphoid cells exhibit progressively higher levels of activation during worsening of liver fibrosis.

Introduction: The interleukin-33/interleukin-13 pathway is involved in the immunopathology of liver fibrosis and recently characterized group 2 innate lymphoid cells (ILC2) were identified as profibrotic immune cells in the liver of mouse models. Our aim was to elucidate whether ILC2 might be present in human liver tissue and whether ILC2 contribute to liver fibrosis.

Materials And Methods: To identify ILC2 in liver tissue and blood, we purified mononuclear immune cells from needle biopsies, cirrhotic explant specimen, and paired peripheral blood samples.

Computed tomographic retrograde positive contrast cystography and computed tomographic excretory urography characterization of a urinary bladder diverticulum in a dog.

A one-year-old intact male German shepherd dog was referred with a 3-month history of dysuria and pollakiuria. Physical examination revealed a large firm mass in the caudal abdomen. Findings from survey radiography, negative contrast cystography, computed tomographic (CT) retrograde positive contrast cystography, and CT excretory urography were consistent with a large urinary bladder diverticulum.

Decompression sickness ('the bends') in sea turtles.

Decompression sickness (DCS), as clinically diagnosed by reversal of symptoms with recompression, has never been reported in aquatic breath-hold diving vertebrates despite the occurrence of tissue gas tensions sufficient for bubble formation and injury in terrestrial animals. Similarly to diving mammals, sea turtles manage gas exchange and decompression through anatomical, physiological, and behavioral adaptations. In the former group, DCS-like lesions have been observed on necropsies following behavioral disturbance such as high-powered acoustic sources (e.

Comparative magnetic resonance imaging findings between gliomas and presumed cerebrovascular accidents in dogs.

Cerebrovascular accidents, or strokes, and gliomas are common intraaxial brain lesions in dogs. An accurate differentiation of these two lesions is necessary for prognosis and treatment decisions. The magnetic resonance (MR) imaging characteristics of 21 dogs with a presumed cerebrovascular accident and 17 with a glioma were compared.

[Early use of CT in the management of acute diverticulitis of the colon].

Objective: To assess the early use of CT for the diagnosis, staging, and management of acute diverticulitis.

Material And Methods: A prospective study of 102 patients with a clinical diagnosis of acute diverticulitis of the left colon. Acute diverticulitis was initially divided into 3 clinical stages.

Scimitar syndrome: multislice computer tomography with three-dimensional reconstruction.

Improved resolution of cardiovascular imaging techniques allows better assessment of the morphology of cardiovascular malformations. Multi-slice computer tomography with three-dimensional reconstruction provides both static and dynamic images with high temporal and spatial resolution. We present a three-dimensional reconstruction of scimitar syndrome using multi-slice computer tomography.

One-molar gadolinium chelate (gadobutrol) as a contrast agent for CT angiography of the thoracic and abdominal aorta.

The aim of our study was to evaluate the use of a 1-molar gadolinium chelate (gadobutrol) as an alternative contrast medium for computed tomography angiography (CTA) exams of the aorta. CTA exams of the thoracic and/or abdominal aorta were performed on 15 patients with contraindications for the use of iodine who were not suitable for magnetic resonance examinations. The exams were performed with a 16-detector row scanner, injecting a mean dose of 0.

Virtual vascular endoscopy for acute aortic dissection.

Virtual endoscopy of the aorta is a new three-dimensional reconstruction method from multislice computed tomography or magnetic resonance that offers a virtual navigation through the aorta, and the possibility of having a new preoperative endoluminal vision. We present a case of subacute aortic dissection with a preoperative virtual endoscopy of the aorta.

[Non-invasive assessment of coronary artery bypass grafts by computed tomography: comparison with conventional coronary angiography].

Introduction And Objectives: Although it has been demonstrated that the diagnostic accuracy of computed tomography in the non-invasive assessment of major epicardial coronary arteries is high, only a few studies have evaluated the technique's reliability in assessing coronary artery bypass grafts. The aim of this study was to determine the diagnostic accuracy of multidetector computed tomography in the assessment of coronary grafts.

Patients And Method: We prospectively evaluated 117 coronary grafts in 38 patients who had undergone coronary artery bypass graft surgery and who had a clinical indication for angiographic graft assessment.

Perfusion CT and angio CT in the assessment of acute stroke.

In order to evaluate the clinical utility of non-enhanced CT with perfusion and angio CT in the assessment of acute ischaemic stroke, 42 patients with symptoms of acute stroke were examined within the first 6 h from onset of symptoms with non-enhanced CT (NECT), perfusion CT (PCT) and CT angiography (CTA). Maps of cerebral blood flow (CBF), cerebral blood volume (CBV) and mean transit time (MTT) were analysed visually, and after drawing regions of interest (ROIs) in the territory of anterior, middle and posterior cerebral arteries, maximum-intensity projection and volume-rendering images of the cervical and cerebral vessels were created. All patients underwent a control CT or MR examination 24-48 h after the initial examination.