The Use of SPET in the Thorax
- 26 Downloads
Thallium-201 has been in use for many years for the evaluation of the myocardium, it’s great advantage being the fact that it is possible to examine a patient on one day due to the fact that Thallium-201 shows rapid redistribution after injection at peak stress. In addition Thallium-201 is readily available and relatively non-expensive. Traditionally it has been used in a standard 3 projection protocol, namely anterior-posterior, left-anterior-oblique and left-lateral. The usual dose is being 74 MBq, which is relatively small and this together with the physical characteristics of Thallium-201 do not make it an optimal pharmaceutical for SPET imaging; the main drawback being the long acquisition time. However SPET imaging with Thallium-201 is widely used because of the cost-effectiveness and it’s capability to evaluate viable myocardium. In addition there are relatively large databases available for use in the so called Polar Images which is not the case in for example Technetium-99m-Hexamibi.
KeywordsMyocardial Perfusion Imaging Reverse Redistribution SPET Imaging Redistribution Image MIBI SPECT
Unable to display preview. Download preview PDF.
- 13.Berman DS, Kiat H, Maddahi J. The new 99mTc myocardial perfusion imaging agents: 99mTc-sestamibi and 99mTc-teboroxime. Circulation 1991;84[suppll]:I-7-I–21Google Scholar
- 15.Verzijlbergen JF, Suttorp MJ, Ascoop CAPL. Combined assessment of technetium-99m sestamibi planar myocardial perfusion images at rest and during exercise with rest/exercise left ventricular wall motion studies evaluated from gated myocardial perfusion studies. Am Heart J 1992;123:59–68.PubMedCrossRefGoogle Scholar
- 18.Kouris K, Abdel-Dayem HM, Taha B, Ballani N, Hassan IM, Constantinides C. Left ventricular ejection fraction and volumes calculated from dual gated SPECT myocardial imaging with 99Tcm-MIBI. Nucl Med Commun 1992;13:648– Roberti RR, Van Tosh A, Baruchin MA, et al. Left ventricular cavity-to-myocardial count ratio: a new parameter for detecting resting left ventricular dysfunction directly from tomographic thallium perfusion scintigraphy. J Nucl Med 1993;34:193–198.Google Scholar