New method for improved reproducibility of ROI position in aorta, and automation of gamma fitting in BUR examination for non-invasive cerebral blood flow measurement

• Published in: Nippon Hōshasen Gijutsu Gakkai zasshi Vol. 59; no. 12; p. 1561
• Main Author: Odashima, Satoshi
• Format: Journal Article
• Language: Japanese
• Published: Japan 01.12.2003
• Subjects: Aged; Aorta, Thoracic - diagnostic imaging; Brain - metabolism; Calibration; Cerebrovascular Circulation; Cysteine - analogs & derivatives; Female; Humans; Image Processing, Computer-Assisted - methods; Male; Middle Aged; Organotechnetium Compounds; Radiopharmaceuticals; Reproducibility of Results; Subtraction Technique; Tomography, Emission-Computed, Single-Photon - methods

The brain uptake ratio (BUR) is useful for non-invasive cerebral blood flow measurements. To obtain this ratio requires setting an ROI on the aorta to draw the time-activity curve (TAC). Previously, the ROI has been manually set, in order to avoid two undesirable positionings: 1) protrusion from the...