title: Attempt of quantitative analysis of visual evaluation for (123)I-BMIPP myocardial scintigraphy images.
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 (123)I-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.
authors.affiliation: Department of Internal Medicine, Kohjinkai Kimachi Hospital , Aobaku, Sendai, Japan. ino-oka44442@mni.ne.jp
authors.forename: Eiji
authors.initials: E
authors.lastname: Ino-Oka
authors.forename: Satomi
authors.initials: S
authors.lastname: Chiba
authors.forename: Jun
authors.initials: J
authors.lastname: Urae
authors.forename: Makoto
authors.initials: M
authors.lastname: Sekino
authors.forename: Masatsugu
authors.initials: M
authors.lastname: Satoh
authors.forename: Kazuhisa
authors.initials: K
authors.lastname: Takeuchi
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Sekino
authors.forename: Shinya
authors.initials: S
authors.lastname: Kajikawa
authors.forename: Hikaru
authors.initials: H
authors.lastname: Inooka
mesh_terms: D005227:Fatty Acids; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D007457:Iodine Radioisotopes; D007462:Iodobenzenes; D008954:Models, Biological; D055414:Myocardial Perfusion Imaging / Q000379:methods*; D015203:Reproducibility of Results; D015899:Tomography, Emission-Computed, Single-Photon / Q000379:methods
chemical_list: D005227:Fatty Acids; D007457:Iodine Radioisotopes; D007462:Iodobenzenes; C049338:iodofiltic acid