Relationship between various parameters derived from 123I-labelled beta-methyl-branched fatty acid whole-body scintigraphy and left ventricular ejection fraction in patients with ischaemic heart disease.
Heart uptake and clearance of 123I-15-(p-iodophenyl)-3(R,S)-methyl- pentadecanoic acid (BMIPP) by whole-body scintigraphy in relation to left ventricular ejection fraction (LVEF) was evaluated in 34 patients with ischaemic heart disease. At 45 and 210 min after injection, anterior whole-body images were obtained. In each patient, multigated blood pool scintigraphy was also performed, and LVEF was calculated. The percentage heart uptake of BMIPP did not have a significant correlation with LVEF (R = -0.299, NS). In contrast, there was a positive correlation between LVEF measured by multigated blood pool scintigraphy and BMIPP count density of the heart (R = 0.467, P = 0.005). Myocardial BMIPP washout rate also positively correlated with LVEF (R = 0.472, P = 0.005). In addition to these observations, there was a positive correlation between the BMIPP count density of the heart and myocardial BMIPP washout rate (R = 0.0543, P = 0.001). Thus, the BMIPP count density of the heart and myocardial BMIPP washout rate derived from BMIPP whole-body scintigraphy directly correlated with LVEF. However, the correlations between these parameters and LVEF were not strong enough to allow left ventricular dysfunction to be assessed precisely.
Matsunari
I
I
Department of Radiology, Fukui Prefectural Hospital, Japan.
Saga
T
T
Taki
J
J
Akashi
Y
Y
Wakasugi
T
T
Hirai
J I
JI
Aoyama
T
T
Matoba
M
M
Nishikawa
T
T
Ichiyanagi
K
K
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005227:Fatty Acids; D005260:Female; D006801:Humans; D007457:Iodine Radioisotopes; D007462:Iodobenzenes / Q000493:pharmacokinetics; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000000981:diagnostic imaging / Q000503:physiopathology; D017202:Myocardial Ischemia / Q000000981:diagnostic imaging* / Q000503:physiopathology; D009206:Myocardium / Q000378:metabolism; D012044:Regression Analysis; D014055:Tomography, Emission-Computed; D016277:Ventricular Function, Left
D005227:Fatty Acids; D007457:Iodine Radioisotopes; D007462:Iodobenzenes; C049338:iodofiltic acid