Exploring a technique for reducing the influence of scattered rays from surrounding organs to the heart during myocardial perfusion scintigraphy with technetium-99m sestamibi and technetium-99m tetrofosmin.
We have devised a new position (Monzen position) which can suppress the influence of scattered rays from surrounding organs (liver, etc.) when conducting myocardial imaging. Unlike the conventional techniques, which require a waiting period of 30-60 minutes before imaging can be started after the infusion of technetium-99m sestamibi or technetium-99m tetrofosmin, this position allows single-photon emission tomography to be started about 5-10 minutes after the infusion of the tracer. Therefore, with this technique the total time required for imaging is reduced and consequently the physical and mental burden of the patient is also reduced. Furthermore, the number of patients who can receive this test at any facility can be increased. This position may also be applicable in myocardial scintigraphy using some other tracers.
Monzen
Hajime
H
Department of Radiology, Otsu Red Cross Hospital, 1-1-35, Nagara, Otsu, Shiga 520-8511, Japan.
Hara
Masatake
M
Hirata
Makoto
M
Nakanishi
Akira
A
Ogasawara
Makoto
M
Suzuki
Takatoshi
T
Sato
Tamie
T
Shimoyama
Hisashi
H
Tadehara
Futoshi
F
Hirose
Kunihiko
K
Yuki
Rumio
R
D000368:Aged; D016477:Artifacts; D005260:Female; D006321:Heart / Q000000981:diagnostic imaging*; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D008297:Male; D009943:Organophosphorus Compounds; D015609:Organotechnetium Compounds; D010477:Perfusion; D019047:Phantoms, Imaging; D011187:Posture; D019275:Radiopharmaceuticals; D015203:Reproducibility of Results; D012542:Scattering, Radiation; D012680:Sensitivity and Specificity; D017256:Technetium Tc 99m Sestamibi; D015899:Tomography, Emission-Computed, Single-Photon / Q000295:instrumentation / Q000379:methods*
D009943:Organophosphorus Compounds; D015609:Organotechnetium Compounds; D019275:Radiopharmaceuticals; C078700:technetium tc-99m tetrofosmin; D017256:Technetium Tc 99m Sestamibi