Search results for "tomography"

Optic nerve hypoplasia and internal carotid artery hypoplasia: a new association

2017

Mismatch Between Imaging and Functional Relevance of Coronary Stenoses: Seeing Is Not Believing

2016

This case emphasizes the differences between structural, anatomic, and functional assessment of coronary lesions. Both the LAD and the RCX presented lesions which, while seemingly severe at optical coherence tomography, did not cause functional obstruction.

New Trends in Detectors for Medical Imaging

2010

The improvement of medical imaging instrumentation is based both on the enhancement of the performance of the detectors employed in their construction and on the development of novel techniques and methods that allow full exploitation of the advantages of the new instrumentation.

Relevance of functional imaging in dental implantology

2018

Background Despite it is widely used in many medicine fields, the use of functional imaging to examine dental implants has not been reported in the literature. This work aimed to evaluate the relevance of functional medical imaging in oral implantology. Material and methods This single-center observational study was conducted for 6 months at the Toulouse University Hospital, France. All patients who underwent positron emission tomography with 18-fluorodeoxyglucose integrated with X-ray computed tomography (FDG PET/CT) and had dental implants were included. Metabolic activity of the peri-implant tissues was assessed qualitatively and quantitatively jointly by a nuclear physician and a dental…

Disconnected pancreatic duct syndrome: complete pancreas transection secondary to acute pancreatitis

2016

Disconnected pancreatic duct syndrome is a serious complication of acute pancreatitis which is defined by a complete discontinuity of the pancreatic duct, such that a viable side of the pancreas remains isolated from the gastrointestinal tract. This pancreatic disruption is infrequently observed in the clinical practice and its diagnostic and therapeutic management are controversial. We present an extreme case of disconnected pancreatic duct syndrome with complete duct disruption and pancreatic transection following acute pancreatitis, as well as the diagnostic and therapeutic processes carried out.

Mosaic architecture of hepatocellular carcinoma

2017

Detection of lymph node metastases in esophageal cancer.

2011

Lymph node status is the most important single prognostic factor in esophageal cancer. The detection of involved lymph nodes is therefore the key to cure. This article will provide a meta-analysis and metaregression analysis on the diagnostic performances of current lymph node-detection devices; discuss the recent status of the sentinel lymph node concept in esophageal cancer by the two sentinel node-mapping procedures (the radio-guided and the blue dye techniques) and the developing computed tomography (CT) lymphography; discuss the detection of micrometastases; and the potential clinical application of molecular-based patients' profiles. Combined use of endoscopic ultrasonography fine-nee…

Effects of diet-induced obesity and voluntary wheel running on the microstructure of the murine distal femur

2011

Abstract Background Obesity and osteoporosis, two possibly related conditions, are rapidly expanding health concerns in modern society. Both of them are associated with sedentary life style and nutrition. To investigate the effects of diet-induced obesity and voluntary physical activity we used high resolution micro-computed tomography (μCT) together with peripheral quantitative computed tomography (pQCT) to examine the microstructure of the distal femoral metaphysis in mice. Methods Forty 7-week-old male C57BL/6J mice were assigned to 4 groups: control (C), control + running (CR), high-fat diet (HF), and high-fat diet + running (HFR). After a 21-week intervention, all the mice were sacrifi…

Orthopantomography contribution to prevent isquemic stroke.

2014

Objectives: The ortopantomography (OPG) can be a valuable way for an early detection of calcified atheroma plaques, thus contributing for a preliminary stroke risk evaluation. The study looks for the existence of calcified atheroma plates through the use of OPG, comparing the results with the stenosis percentage found through eco-doppler. It has been analyzed the correlation of the number of years as a smoker, arterial hypertension and body mass index, against the risk of having calcified atheroma plaques. Study Design: Observational, transversal and prospective study with 84 patients from the Dental Center of Hospital Particular de Lisboa. First the patients answered to an inquiry and them…

The “bouquet of flowers” appearance in medullary sponge kidney

2018

The “bouquet of flowers” appearance is a radiological finding described for the intravenous pyelography (IVP) diagnosis of medullary sponge kidney (MSK). It refers to contrast pooling in dilated tubular structures in renal papillae, giving a striated pattern to the renal medulla, which resembles a “bouquet of flowers”