医用画像表示用モニタの品質 ... - jira-net.or.jp

1 / JESRA X 0093 B 2017 2005 8 8 2010 6 11 2010 10 1 2017 7 20 Quality Assurance (QA) Guideline for Medical Imaging Display Systems / .. 1 .. 2 .. 3 .. 4 .. 5 .. / .. 6 .. / .. A.. 1. TG18-QC SMPTE .. 2. jira BN-nn TG18-LN-nn .. 3. TG18-UNL80 /TG18-UN80 .. 4.. 5. jira CHEST-QC .. B.. 1.. 2.. 3.. 4.. 5.. C.. 1. GSDF .. 2.. 3.. 4.. 1.. 2. DICOM Supplement 124 Communication of Display Parameters .. 3.. 4. 2017 1 .. 1. JIS .. 2. QA .. 3. QA 2017 .

2 / .. (WG7) .. (WG10) .. / 1 2005 PC 2 3 4 1 5 DICOM PS GSDF

3 1 2 1. 3 jira DICOM Supplement124 2. 4 3 5 GSDF C 1 / 2 JIS Z 4752-1 2001 1 JIS T 62563-1 2013 1 Digital Imaging and Communications in Medicine (DICOM) Part14: Grayscale Standard Display Function AAPM On-Line Report No. 03 2005 ASSESSMENT OF DISPLAY PERFORMANCE FOR MEDICAL IMAGING SYSTEMS Citation: Samei E, Badano A, Chakraborty D, Compton K, Cornelius C, Corrigan K, Flynn MJ, Hemminger B, Hangiandreou N, Johnson J, Moxley M, Pavlicek W, Roehrig H, Rutz L, Shepard J, Uzenoff R, Wang J, Willis C.

4 Assessment of Display Performance for Medical Imaging Systems, Report of the American Association of Physicists in Medicine (AAPM) Task Group 18, Medical Physics Publishing, Madison, WI, AAPM On-Line Report No. 03, April 2005. 2015 3 3 100 M: "1200 1600" 2M 1200 1600(2M ), 1536 2048(3M ) 3 4 1024 1280(1M ), 2048 2560(5M ) 4 5 / cd/ 255 8bit Lmax 0 Lmin Lamb OFF +Lamb / +Lamb Lamb Lamb 0cd/ 8bit 0 255 GSDF Grayscale Standard Display Function DICOM[Digital Imaging and COmmunication in Medicine]

5 1 JND Just Noticeable Difference JND GSDF JND JND Just Noticeable Difference JND GSDF 1 01002003004000326496128160192224 (cd/ DICOM GSDFG amma / GSDF GSDF 0 255 15 18 2 [lx] 2 xy XYZ u ,v UCS LUT[Look Up table] 1 CRT LCD / 4 3 6 1 Lmax (cd/m2) Lmax/Lmin (%))

6 1 A 350 250 10 B or 170 250 15 2 100 100 30 1B 1 1B 5 JIS Z 4752-1 7 8 / 9 6 4. 7 C 3 8 B 9 C 2 / 6 3 / : A :350cd/ :100% WW:4096/WL.

7 2048 ( ) 10 OFF ON 10 / 11 12

8 2 2 GSDF 11 3 12 B 4 c / LUT GSDF GSDF 3 3 6 1 4 / 2 [ ] / 1 2 A B 1000 1000 Pixel 16[11] 5 %95 % TG18-QC [SMPTE] [ ]

9 TG18-QC [8bit ] TG18-UN80 [TG18-UNL80, ] TG18-QC [SMPTE] 30 (Lhigh Llow)/ (Lhigh+Llow} *200 (%) TG18-UN80 [TG18-UNL80, ] / 10 15 30 (%) jira BN [TG18-LN] / 350 170 100 Lmax(cd/m2) 10 (Lmax_H Lmax_L)/Lmax_L*100 (%) 250 100 Lmax/Lmin u'v' {(u a u b)2+(v a v b)2}1/2 TG18-UN80 [TG18-UNL80, ] / u'v'ave= {(u ave_R u ave_L.)2+(v ave_R v ave_L)2}1/2 / 3 [ ] 1 2 A B 16[11] 5 %95 % TG18-QC [SMPTE] [ ] 16[11] 5 %95 % jira CHEST-QC / 4 [ ] / 1 2 A B 16[11] 5 %95 % TG18-QC [SMPTE] [ ] TG18-QC [8bit ] TG18-UN80 [TG18-UNL80, ] TG18-QC [SMPTE] TG18-UN80 [TG18-UNL80, ] 10 15 30 (%) jira BN [TG18-LN] / 350 170 100 Lmax(cd/m2) 10 {(Lmax_n Lmax_0)/Lmax_0} *100 (%) 10 (Lmax_H Lmax_L))

10 /Lmax_L *100 (%) 250 100 Lmax/Lmin / A 1 1 ( ) 1 2 1 2 TG18-QC TG18-UN80 SMPTE TG18-UNL80 / jira CHEST-QC jira CHEST-QC jira TG18-QC 3 4 5 4 5 TG18-LN-1 18 jira BN-01 18 JIRACHEST-QC TG18-UNL80 TG18-UN80 / 1.