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Clinical and Experimental Hypertension Volume 33, 2011 - Issue 4
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Research Article

Attempt of Quantitative Analysis of Visual Evaluation for 123I-BMIPP Myocardial Scintigraphy Images

Eiji Ino-OkaDepartment of Internal Medicine, Kohjinkai Kimachi Hospital, Aobaku, Sendai, JapanCorrespondence[email protected]
,
Satomi ChibaDepartment of Radiology Kohjinkai Central Clinic, Miyaginoku, Sendai, Japan
,
Jun UraeDepartment of Internal Medicine, Kohjinkai Kimachi Hospital, Aobaku, Sendai, Japan
,
Makoto SekinoDepartment of Internal Medicine, Kohjinkai Kimachi Hospital, Aobaku, Sendai, Japan
,
Masatsugu SatohDepartment of Urology, Kohjinkai Kimachi Hospital, Aobaku, Sendai, Japan
,
Kazuhisa TakeuchiDepartment of Internal Medicine, Kohjinkai Central Clinic, Miyaginoku, Sendai, Japan
,
Hiroshi SekinoDepartment of Urology, Kohjinkai Central Clinic, Miyaginoku, Sendai, Japan
,
Shinya KajikawaDepartment of Mechanical Engineering and Intelligent Systems, Faculty of Engineering, Tohoku Gakuin University, Sendai, Japan
&
Hikaru InookaDepartment of Information Science, Graduate School of Tohoku University, Sendai, Japan
 show all
Pages 264-269 | Received 26 Aug 2010, Accepted 03 Jan 2011, Published online: 24 Jun 2011
 
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Abstract

We developed a new technique to quantitatively analyze visual evaluation single photon emission computed tomography (SPECT). Short axis tomograms and color scales were computer scanned. The scales were divided into 25 parts; numbers of each hue pixel were scored 0–100%. Short-axis images were divided into eight equal partitions, numbers of hue pixels distributed in each partition were scored, and total scores were obtained. Each partition’s radio-isotope (RI) accumulation index was calculated as partition score/highest score. For method validation, scintigrams from each left ventricular phantom part were divided into eight partitions and filled with 123I-BMPP (10–100%). The error between theoretical and calculated concentrations was within 20% in the concentration range of ≥50%, suggesting a good correlation and indicating the method’s validity.

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