[Assessment of left ventricular wall thickening with gated 99mTc-MIBI SPECT--value of normal file].
The wall thickening was assessed by regional count increase from end-diastole (ED) to end-systole (ES) in gated 99mTc-MIBI SPECT. The wall thickening index was calculated as (ES count--ED count)/ED count x 100 (% thickening). Gated SPECT was performed three hours after injection of 600 MBq of 99mTc-MIBI in 20 normal subjects to create normal files (ED, ES perfusion maps and % thickening map). In normal ED and ES perfusion maps, distribution in anterior and lateral regions were higher than other regions, indicating heterogeneous perfusion. In addition, the % thickening in apex was higher than anterior and lateral and septal regions, suggesting heterogeneous % thickening in normal subjects. Furthermore, the % thickening was different between male and female. We conclude that quantitative analysis of regional thickening can be performed by gated 99mTc-MIBI SPECT with normal files.
Shirakawa
S
S
Department of Radiology, Kyoto University Faculty of Medicine.
Hattori
N
N
Tamaki
N
N
Fujita
T
T
Yano
S
S
Kudoh
T
T
Yonekura
Y
Y
Konishi
J
J
D000328:Adult; D003287:Contrast Media; D005260:Female; D015637:Gated Blood-Pool Imaging; D006321:Heart / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D006352:Heart Ventricles; D006801:Humans; D008297:Male; D008875:Middle Aged; D012016:Reference Values; D012727:Sex Characteristics; D017256:Technetium Tc 99m Sestamibi; D015899:Tomography, Emission-Computed, Single-Photon
D003287:Contrast Media; D017256:Technetium Tc 99m Sestamibi