There is still considerable debate about the optimal diagnostic imaging modality for acute pulmonary embolism. If imaging is deemed necessary from an initial clinical evaluation such as d-dimer testing, options include nuclear medicine scanning, catheter pulmonary angiography, and spiral CT. In many institutions, spiral CT is becoming established as the first-line imaging test in daily clinical...

CONTEXT The clinical validity of using computed tomography (CT) to diagnose peripheral pulmonary embolism is uncertain. Insufficient sensitivity for peripheral pulmonary embolism is considered the principal limitation of CT. OBJECTIVE To review studies that used a CT-based approach to rule out a diagnosis of pulmonary embolism. DATA SOURCES The medical literature databases of PubMed, MEDLIN...

Retrograde ureteric stone migration is an extremely rare phenomenon with only one previously reported case in the literature. We report on a case of upward spontaneous migration of a ureteric stone in a 39-year-old male military trainer in Saudi Arabia who was diagnosed with upper left ureteric stone based on non-contrast spiral computerized tomography kidney ureter bladder (CT-KUB) scan. The p...

background: this study set out to evaluate the utility of cerebrovascular virtual non-contrast (vnc) scans. materials and methods: conventional non-contrast (cnc) and dual-energy computed tomography angiography (de-cta) head scans were conducted on 100 subjects, of which 46 were normal, 15 had parenchymal hematomas of the brain, 13 had ischemic infarction, 22 had tumors, and 4 had calcified les...

Technological breakthroughs in the 1990s have given rise to an exciting advance in medical imaging: spiral computed tomography (CT) remarkable speed and volumetric data acquisition set spiral CT apart from conventional CT. These advantages have improved the detection rates for laryngeal, thoracic, hepatic, pancreatic, and renal disease. Moreover, spiral CT technology has spawned a new vascular ...

Carcinoma of the pancreas is extremely common, with a five-year mortality rate of about 95-99%. Radical surgery requires good technical skill and can cause complications and operative mortality, but should be avoided in patients with extrapancreatic involvement. Advances in dynamic spiral CT-scan have decreased the number of unnecessary laparotomies. VLS is indicated in cases of pancreatic mass...

    Background: Evaluating the landmarks for rotation of the distal femur is a challenge for orthopedic surgeons. Although the posterior femoral condyle axis is a good landmark for surgeons, the surgical transepicondylar axis may be a better option with the help of preoperative CT scanning. The purpose of this study was to ascertain relationships among the axes’ guiding distal femur rotational ...