[Simultaneous evaluation of myocardial perfusion and fatty acid metabolism using dynamic SPECT with single injection of 123I-15-(p-iodophenyl)-3-methyl pentadecanoic acid (BMIPP)].
The purpose of this study is to clarify whether dynamic SPECT (DECT) immediately after the injection of 123I-15-(p-iodophenyl)-3-methyl pentadecanoic acid (BMIPP) may represent myocardial perfusion imaging. Ten patients with unstable angina pectoris (UAP), 11 patients with acute myocardial infarction (AMI) and 6 patients with non-ischemic heart disease (NIHD) were studied using BMIPP myocardial scintigraphy with DECT. DECT acquisition was started 2 minutes after the injection of BMIPP, and DECT images were obtained every three minute for 15 minutes with 3-headed gamma camera SPECT system. Additionally, static SPECT images were acquired 30 minutes after the injection of BMIPP. These SPECT images of BMIPP were compared with thallium-201 myocardial perfusion images at rest. In UAP group, early DECT images showed almost the same findings as thallium-201 images in 8 of 10 patients, and SPECT images at 30 minutes after the injection showed reduced accumulation of BMIPP compared with thallium-201 images in all patients. In AMI group, early DECT images showed the same findings as thallium-201 perfusion images in 9 of 11 patients, and SPECT images at 30 minutes after the injection showed reduced accumulation of BMIPP compared with thallium-201 images in 5 of 11 patients. These results indicate that myocardial perfusion can be evaluated in the early image using DECT, in addition to myocardial fatty acid metabolism in the delayed image.
Kobayashi
H
H
Department of Radiology, Tokyo Women's Medical College Hospital.
Asano
R
R
Oka
T
T
Inoue
S
S
Momose
M
M
Ikkatai
Y
Y
Sumiyoshi
T
T
Matsumoto
N
N
Horie
T
T
Kusakabe
K
K
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003326:Coronary Circulation; D003327:Coronary Disease / Q000000981:diagnostic imaging / Q000378:metabolism; D003652:Decanoic Acids / Q000008:administration & dosage; D005227:Fatty Acids / Q000378:metabolism*; D005260:Female; D006321:Heart / Q000000981:diagnostic imaging*; D006801:Humans; D007275:Injections, Intravenous; D007457:Iodine Radioisotopes / Q000008:administration & dosage; D007462:Iodobenzenes / Q000008:administration & dosage; D008297:Male; D008875:Middle Aged; D009206:Myocardium / Q000378:metabolism*; D015899:Tomography, Emission-Computed, Single-Photon / Q000379:methods
D003652:Decanoic Acids; D005227:Fatty Acids; D007457:Iodine Radioisotopes; D007462:Iodobenzenes; C049338:iodofiltic acid