Purpose: This paper aims to realize an analysis of available radio-imaging methods for outlining various forms of pulmonary embolism (acute or chronic) with highlights on the semiology and adequate medical indications. Methods: There are several types of radiological examinations used in the evaluation of pulmonary embolism such as perfusion scintigraphy V/Q, digital subtraction angiography, co...

Coronary angiography is an invasive procedure that utilises X-ray imaging and contrast medium to visualise the coronary vasculature guide management. Current National Institute for Health Care Excellence guidance aims provide within 72-hours patients with high-risk (GRACE>3%) non-ST elevation myocardial infarction (NSTEMI) late-presenting (>12 hours) ST-elevation (STEMI).

(A) The integrated marking feature allows for the placement of a colored are placed on or near the center of each of the coronary cusps in the en colored markers are individually dragged (table side control, using a stand level of the aortic annulus (left panel). These 2 separate steps result in the (long-axis location) of each coronary cusp of the native aortic valve. (C) to a position such th...

PURPOSE To assess the accuracy of MR angiography alone in screening for vascular stenosis of the common carotid bifurcation. METHODS Two hundred two common carotid bifurcations in 101 patients were evaluated with MR angiography and selective contrast arteriography. A two-dimensional time-of-flight pulse sequence was used to obtain sequential transverse images through the common carotid bifurc...

PURPOSE To summarize and compare the validity of computed tomography angiography, magnetic resonance angiography, ultrasonography, captopril renal scintigraphy, and the captopril test for diagnosis of renal artery stenosis in patients suspected of having renovascular hypertension. DATA SOURCES For each diagnostic modality, published studies were identified by MEDLINE literature searches. ST...

An X-ray stereo imaging system with synchrotron radiation was developed at BL20B2, SPring-8. A portion of a wide X-ray beam was Bragg-reflected by a silicon crystal to produce an X-ray beam which intersects with the direct X-ray beam. Samples were placed at the intersection point of the two beam paths. X-ray stereo images were recorded simultaneously by a detector with a large field of view pla...

Methods CE-MARC was a prospective study of 752 patients with suspected angina. All patients were scheduled for CMR, SPECT and X-ray coronary angiography. Multi-parametric CMR comprised adenosine stress/rest perfusion, cine imaging, late gadolinium enhancement and MR coronary angiography. Gated adenosine stress/rest SPECT was performed using 99mTc-tetrofosmin. The primary outcome was the diagnos...

Background 3.0T contrast enhanced whole-heart coronary magnetic resonance angiography (MRA) is a promising method for noninvasive, radiation-free detection and exclusion of obstructive coronary artery disease (CAD); however, the accuracy of this approach has not been determined in a multicenter trial. Methods An ECG-triggered, navigator-gated, inversion-recovery prepared, segmented gradient-ech...