厚生労働省からのガイドライン - UMIN

1 (2004/7/17).. ( ). 5 00 00. 4 50 00 .. 4 00 00. 3 50 00. 3 00 00. 2 50 00. 2 00 00. 1 50 00. 1 00 00. 5 00 0. 2004/07/17 . 0 ( ). 1 97 5 1 98 0 1 98 5 1 99 0 1 99 5 2 00 0 2 00 5 2 01 0 2 01 5.. 140.. 120 . 100. MMG . 80. MLO CC). 60 .. 40.. 20.. 0. MMG . 1973 1979 1985 1991 1997.. Breast Imaging Lexicon .. Reporting system .. 1998. Breast Imaging Reporting and Data System (BI-RADS) Second Edition American college of Radiology (ACR) 1995.. 1999.. 1 negative . 2 benign . 3 . benign but malignancy not ruled out . 4 suspicious abnormality . 5 highly suggestive malignancy . 1. (2004/7/17). negative benign .. oil cyst .. 3 4 suspiciousabnormality . benign but malignancy not ruled out .. 5 highly suggestivemalignancy.

2 MMG .. mass .. Spiculated mass .. 2. (2004/7/17).. hamartoma): .. microcalcifications .. 3. (2004/7/17).. DCIS (ductal carcinoma in situ).. segmental grouped,clustered liner .. diffuse regional segmental linear grouped . scattered clustered . , .. 4. (2004/7/17).. architectural distortion .. tubular density / solitary dilated duct . asymmetric breast tissue architectural distortion . focal asymmetric density (FAD).. architectural distortion .. trabecular thickning, coarse reticular pattern .. 5.. 1987 30 .. 2000 65 2001 .. 2004 .. ( ) ( ) .. 1.. 2.. 3.. CR . ( .. ). CR .. 5.. 6.. (1) . 7. (2) .. 8.. (1)S/F . a) .. (2)CR DR . a) . 9.. AEC .. b) . 10 . 10 . 10 .. ( ) ( ) .. 1.. 3,500cd/m2 .. 2.. 50lx.

3 3.. 4. 10mm 40 .. 5.. 20N 10N . 5mm . 6.. 7.. (1) . SID . (2) .. 5mm .. SID 2%(1% . ) .. ( ) ( ) .. 0 .. 6mm .. 6mm .. 0 (1) . 25 32kV 5 .. 10 . (2) .. 10mm .. 13lp/mm . 11lp/mm . HVL . HVL HVL(mmAl)<( kV/100)+C. C= (Mo /Mo ). C= (Mo /Rh ). C= (Rh /Rh ).. C= (W /Rh ). HVL ( kV/100)+ HVL.. HVL . ( kV/100) HVL(mmAl).. ( ) ( ) .. (1)S/F . BR-12 50% 50% . PMMA(Polymethyl-methacrylate) . 20 60mm kV .. 50mm .. (kV AEC ) . mAs 40mm . 4 . (2)S/F .. BR-12 50% 50% . PMMA 20 60mm . kV . CR . S E AEC . CR .. (kV AEC ) . (3)DR .. mAs . a) .. Mo /Mo . 28kV. SID.. 40mm .. 45mm .. mAs . mAs .. b) .. ( ) ( ) .. 42mm 50% 50% . 3mGy . 2mGy . 8.. (1)S/F .. (2)CR . CR .. Radiation Measurements,Inc. 156 . Nuclear Associates 18-220.

4 Computerized Imaging Reference System,Inc. 15 .. AGH-D210.