Title:
IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2016/152448
Kind Code:
A1
Abstract:
This image processing apparatus (1) is provided with: an image data acquisition unit (10) that acquires data of a SPECT image of a brain; a brain region ROI setting unit (13) that sets a brain region ROI in the SPECT image; a striatum ROI setting unit (14) that sets a striatum ROI in the SPECT image; a histogram generation unit (15) that generates a histogram in which the horizontal axis represents classes of count values, and the vertical axis represents the frequency of unit regions corresponding to each class; a threshold determination unit (16) that determines a threshold for identifying a cerebral ventricle and a sulcus in the SPECT image on the basis of count values in the background of the SPECT image wherein the striatum ROI is excluded from the brain region ROI; a region identification unit (17) that identifies a region with a count value less than or equal to the threshold and a region with a count value greater than the threshold; and an SBR calculation unit (18) that calculates a specific binding ratio (SBR), excluding regions with count values less than or equal to the threshold. This makes it possible to eliminate the influence of the cerebral ventricle and the sulcus in calculation of the SBR, using only nuclear medicine image data.
Inventors:
NISHIKAWA KAZUHIRO (JP)
Application Number:
PCT/JP2016/056682
Publication Date:
September 29, 2016
Filing Date:
March 03, 2016
Export Citation:
Assignee:
NIHON MEDIPHYSICS CO LTD (JP)
International Classes:
G01T1/161
Foreign References:
| JP2011502130A | 2011-01-20 |
Other References:
See also references of EP 3276380A4
Attorney, Agent or Firm:
SUZUKI, Mamoru et al. (JP)
Mamoru Suzuki (JP)
Mamoru Suzuki (JP)
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