Direct visualization of the epicardial coronaryarteries is necessary to confirm the presenceand focal severity of coronary luminal dis- ease. For the past 50 years, invasive coronary arteri- ography has been the clinical reference standard for defining coronary artery disease. However, in many ...
To evaluate detection of intracranial aneurysms with helical computed tomography (CT) and compare the results with those of conventional angiography and ma... R Schwartz - 《Radiology》 被引量: 429发表: 1994年 CT Angiography for the Detection of Cerebral Vasospasm in Patients with Acute Subarachnoid...
BACKGROUND: Body weight, body mass index (BMI), and scout X-ray radiographic attenuation can be used to predict image noise on computed tomographic coronary angiography (CTCA) images. PURPOSE: To use a formula to predict patient-specific image noise and then select an appropriate CTCA patient-...
Studies have demonstrated a high negative predictive value of CT coronary angiography (CTCA). CTCA may be reasonably used for the assessment of symptomatic patients, especially in the setting of equivocal treadmill or functional testing. Also, CTCA allows assessment of coronary bypass graft patency ...
aChildren of the Reformation with an accompanying world view and their attitudes to children were so informed Children of the Reformation with an accompanying world view and their attitudes to children were so informed [translate] aThe pattern of leptomeningeal collaterals on CT angiography is a ...
During these tests, you either drink a barium-containing fluid or have it inserted through your rectum. Then, doctors use an X-ray to look for any unusual signs, as barium lights up on this imaging test. Angiography Doctors inject a dye into a vein before you get a CT scan or MRI. ...
In patients in whom the differential diagnosis includes pulmonary embolism (dyspnoea, pleuritic chest pain etc.) intravenous contrast injection with a delay appropriate for CT pulmonary angiography may be required. Dose considerations As many cancer patients are treated with a curative intent and these ...
In the morning he was dismayed to read the statement, ‘I am a hammer.’ If a dream becomes a nightmare, waking with a start can be involuntary – and a welcome relief. Your brain paralyses your muscles to stop you acting on these disturbing visions – unless, that is, you are a ...
Two Coronary CT Angiogram (CCTA) studies demonstrated that patients with stable coronary artery disease on statin therapy randomized to high dose EPA and DHA had “prevention of coronary plaque progression when an omega-3 fatty acid index >= 4% was achieved.” ...
BRIAN T. WILKERSONimmediate angiographic assessment using CT angiography is easy to perform; this procedure is widely available in the Netherlands. The additional diagnostic value of magnetic resonance imaging/magnetic resonance angiography MRI/MRA in patients with negative CT angiography results is unknown...