[Scintigraphic evaluation of myocardial perfusion after using TI-201 in patients before and after successful percutaneous transluminal coronary angioplasty].
We analysed 53 patients (43 men and 19 women) age 38-71. Exercise TI-201 scintigraphy was performed before PTCA, 6 to 10 days and 3 to 6 months after PTCA. Before PTCA in all the patients myocardial perfusion detects on scintigraphy were observed. The imaging performed 6 to 10 days after PTCA showed an improvement seen as a decrease in the number of ischaemic segment in 36 patients (67.9%) and total normalisation of scintigraphic picture in 12 patients. Coronary angiography performed 6 months after PTCA showed patency of the dilated vessel in 11 (91.3%) among these patients. In exercise TI-201 scintigraphy performed 3 to 6 months after PTCA normalised scan was observed in 20 patients, recurrence of stenosis was found only in 2 (10%) of those patients. In 33 patients with transient perfusion defects, angiographic restenosis was found in 22 (60%) patients. Predictive value of exercise TI-201 scintigraphy for occurrence of restenosis was established. Positive predictive value of the study performed 6 to 10 days after PTCA was 56%. Negative predictive values of such a study was 91%. Similarly, for detection of restenosis in scan performed 3 to 6 months after PTCA there was found a strong negative predictive value-90% and a weak positive predictive value-63%.
Kostkiewicz
M
M
Kliniki Chorób serca i Naczyń Instytutu Kardiologii Collegium Medicum Uniwersytetu Jagiellońskiego, Krakowie.
Tracz
W
W
Podolec
P
P
Jarosz
W
W
Przewłocki
T
T
Pieniaźek
P
P
Badacz
L
L
Kozanecki
A
A
Wójcik
J
J
D000328:Adult; D000368:Aged; D015906:Angioplasty, Balloon, Coronary; D017023:Coronary Angiography; D003327:Coronary Disease / Q000000981:diagnostic imaging* / Q000628:therapy*; D005260:Female; D006321:Heart / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010477:Perfusion / Q000379:methods; D011237:Predictive Value of Tests; D011877:Radionuclide Imaging; D012008:Recurrence; D013794:Thallium Radioisotopes
D013794:Thallium Radioisotopes