The American College of Radiology has developed appropriateness criteria for a number of clinical conditions and procedures. Criteria are available on imaging tests used in the evaluation of acute chest pain--suspected myocardial ischemia. Imaging tests for a suspected cardiac etiology include transthoracic echocardiography, transesophageal echocardiography, radionuclide perfusion imaging, radi...

One of the most important roles of cardiovascular nuclear medicine in evaluating patients with coronary artery disease (CAD) is predicting patient outcome. Measurements of ventricular function obtained by radionuclide ventriculography play a key role in defining a patient's prognosis. Because ventricular function correlates well with the total extent of myocardial ischemic burden, data derived ...

Correspondence to: Dr Constantinos Anagnostopoulos, Royal Brompton Hospital, Sydney St, London SW3 6NP, UK; c.anagnostopoulos@ rbh.nthames.nhs.uk . . . . . . . . . . . . . . . . . . . . . . . 1 BACKGROUND Radionuclide myocardial perfusion imaging uses an intravenous radiopharmaceutical to image myocardial perfusion during stimulation of the perfusion system and at rest. The images are acquired ...

This is the second of two pictorial essays on radionuclide imaging of the lymphatic system and will focus on evaluation of extremity lymphoedema using lymphoscintigraphy. Lymphoedema results from anatomical or functional obstruction of the lymphatic system. Lymphoscintigraphy is the imaging modality of choice for assessing lymphoedema. The technique plays a pivotal role in determining the aetio...

Limitations of Radionuclide Flow Studies in Bilateral Carotid Thrombosis • Radionuclide angiography as a noninvasive procedure has become an important tool in the evaluation of cerebrovascular diseases. Determinations of arm-to-brain circulation times complemented by the transit times of the radionuclide bolus through the brain afford insight into the functional status of the vascular system of...

A simple, noninvasive method for measurement of right-to-left intracardiac shunts would enhance the management of patients with congenital heart disease. This study describes application of data processing techniques used previously in dye-indicator curves to data recorded during the initial transit of radioactive bolus through the central circulation. Radionuclide angiocardiograms were perform...

A consecutive series of 56 patients with chest pain but no evidence of previous myocardial infarction was prospectively studied by radionuclide ventriculography to determine the value of global and regional radionuclide indices in detecting coronary artery disease. The results were correlated with the clinical judgment of chest pain, the results of the exercise electrocardiogram, and the right ...

The majority of cases of spontaneous intracranial hypotension (SIH) result from spontaneous cerebrospinal fluid (CSF) leaks. The disorder has a broad clinical and imaging spectrum, with substantial variability in clinical and imaging features, in CSF findings, and in response to treatment. Headache is the most common symptom, and is typically orthostatic, but with chronicity the orthostatic fea...