title: [Measurement of left ventricular chamber and myocardial volume in hypertrophic cardiomyopathy patients by ECG-gated myocardial perfusion SPECT: application of a newly developed edge-detection algorithm].
abstract: Quantitative gated SPECT (QGS) software has been reported to demonstrate inaccurate edge detection in the left ventricular chamber in hypertrophic cardiomyopathy patients. In this study we developed a method to calculate left ventricular volume (LVV) and left myocardial volume (LMV) from gated SPECT data using a newly developed edge-detection algorithm, and we compared it with the QGS method of calculating LVV and LMV in a phantom study. Our method gave more accurate measurements LVV and LMV whereas the QGS method underestimated LMV. Compared with QGS LVV and LMV, our method yielded better results in the phantom study.
authors.affiliation: Department of Radiology, National Cardiovascular Center/Department of Medical Engineering, Division of Allied Health Sciences, Osaka University Medical School.
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Nishimura
authors.forename: Tetsuro
authors.initials: T
authors.lastname: Katafuchi
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Hirase
authors.forename: Masayoshi
authors.initials: M
authors.lastname: Sagoh
authors.forename: Hisashi
authors.initials: H
authors.lastname: Oka
authors.forename: Hideaki
authors.initials: H
authors.lastname: Mori
authors.forename: Kenya
authors.initials: K
authors.lastname: Murase
mesh_terms: D000465:Algorithms; D002312:Cardiomyopathy, Hypertrophic / Q000000981:diagnostic imaging* / Q000503:physiopathology; D015637:Gated Blood-Pool Imaging; D006801:Humans; D007091:Image Processing, Computer-Assisted; D019047:Phantoms, Imaging; D012984:Software; D013318:Stroke Volume; D015899:Tomography, Emission-Computed, Single-Photon; D016277:Ventricular Function, Left