Author/Editor		Vokač, D; Veble, A
Title		Talij 201 SPECT (single photon emission computed tomography) dipyridamolski test pri koronarnih bolnikih
Translated title		Thallium 201 SPECT (single photon emission computed tomography) dipyridamole testing at coronary artery disease patients
Type		članek
Source		Zdrav Vestn
Vol. and No.		Letnik 63, št. 1
Publication year		1994
Volume		str. 13-7
Language		slo
Abstract		Background. Clinically significant coronary stenosis with homogeneous cardiac perfusion at rest can be revealed by, maneuvers which increase coronary flow. Inhomogerneity, needed for thallium perfusion studies can be achieved with maximal stress testing or by use of strong arteriolar dilatator dipyridamole, which augments coronary flow to three times more than exercise testing. Because of these statements inhomogeneities of thallium distribution and its redistribution are more expressive than by stress testing. The purpose of this article is to present specificities of coronary microcirculation, essential for understanding und interpretation of dipyridamole test with emphasis on coronary steal effect, coronary dilatory reserue uad influence of dipyridamole dilatation on thallium kinetics. Protocol for dipyridamole thallium imaging, indications and limitations for testing, possible adverse effects and our results and experiences are described. Methods. Dipyridamole test was performed at 22 patients referred to 201Tl SPECT imaging for evaluation of coronary artery disease, average age 58 years. Limitations for exercise testing and indications for dipyridamole test were peripheral vascular disease at 18 per cent , cerebral vascular disease at 23 per cent , orthopedic problems or active arthritis at 50 per cent . At 2 patients test was performed due to its high specificity for certain types of ischemia. Results. Reversible defects on thallium perfusion scan have been demonstrated in 15 patients. Significant electrocardiographic ST dipyridamole effect. changes were present at 36 per cent , anginose pain at 27 per cent - all of them positivefor rer greather th. ersible defects on thallium scan - ventricularpremature complexes at 9 per cent and supraventricular at 4.5 per cent of patients. In two patients intravenous aminophylline was needed to stop the Conclusions.(trunc.)
Descriptors		CORONARY DISEASE DIPYRIDAMOLE TOMOGRAPHY, EMISSION-COMPUTED, SINGLE-PHOTON THALLIUM RADIOISOTOPES ADULT