SAFETY SERIES No.115
INTERNATIONAL BASIC SAFETY STANDARDS FOR PROTECTION AGAINST INOIZING RADIATION AND FOR THE SAFETY OF RADIATION SOURCES
INTERIM EDITION
Jointly sponsored by:
Food and Agriculture Organization of the United Nations
Interbational Atomic Energy Agency
International Labour Organization
Nuclear Energy Agency of the
Organization for Economic Co-operation and Development
Pan American Health Organization
World Health Organization
INTERNATINAL ATOMIC ENERGY
VIENNA,1996
Schedule ３
GUIDANCE LEVELS OF
DOSE, DOSE RATE AND ACTIVITY
FOR MEDICAL EXPOSURE
GUIDANCE LEVELS FOR DIAGNOSTIC RADIOLOGICAL PROCEDURES
TABLE ３－１ GUIDANCE LEVELS OF DOSE FOR DIAGNOATIC RADIOGRAPHY FOR A TYPICAL ADULT PATIENT
TABLE ３－２ DOSE GUIADANCE LEVELS FOR COMPUTED TOMOGRAPHY FOR A TYPICAL ADULT PATIENT
TABLE ３－３ DOSE GUIADANCE LEVELS FOR A TYPICAL ADULT PATIENT
TABLE ３－４ DOSE RATE GUIADANCE LEVELS FOR FLUOROSCOPY FOR A TYPICAL ADULT PATIENT
GUIADANCE LEVELS FOR DIAGNOSTIC PROCEDURES IN NUCLEAR MEDICINE
TABLE ３－５ GUIADANCE LEVELS OF ACTIVITY FOR PROCEDURES IN NUCLEAR MEDICINE FOR A TYPICAL ADULT PATIENT
GUIADANCE LEVELS OF ACTIVITY FOR DISCHARGE FROM HOSPITAL
TABLE ３－６ GUIADANCE LEVEL FOR MAXIMUM ACTIVITY FOR PATIENTS IN THERAPY ON DISCHARGE FROM HOSPITAL
TABLE ３－１ GUIDANCE LEVELS OF DOSE FOR DIAGNOATIC
RADIOGRAPHY FOR A TYPICAL ADULT PATIENT
| Examination |
Entrance surface dose
per radioraph*
( mGy ) |
| Lumbar spine |
AP |
10 |
| LAT |
30 |
| LSJ |
40 |
Abdomen,intravenous urography
and cholecystography |
AP |
10 |
| Pelvis |
AP |
10 |
| Hip joint |
AP |
10 |
| Chest |
PA |
0.4 |
| LAT |
1.5 |
| Thoracic spine |
AP |
7 |
| LAT |
20 |
| Dental |
Periapical |
7 |
| AP |
5 |
| Slull |
PA |
5 |
| LAT |
3 |
Notes: PA:posterior-anterior;LAT:lateral projection,
LSJ:lumbo-sacral-joint projection;AP:anterior-posterior projection.
*In air with backscatter.These values are for conventinal film-screen combination in the relative speed of 200.For high speed film-screen combinations(400-600),the values should be reduced by a factor of 2 to 3.
p279
----- go top -------
TABLE ３－２ DOSE GUIADANCE LEVELS FOR COMPUTED TOMOGRAPHY FOR A TYPICAL ADULT PATIENT
| Examination |
Maltiple scan average dose*
( mGy ) |
| Head |
50 |
| Lumbar spine |
35 |
| Abdomen |
25 |
*Derived from measurement on the axis of rotation in water equivalent phantoms, 15cm in length abd 16cm(head) and 30cm(lumber spine and abdomen) in diameter.
----- go top -------
TABLE ３－３ DOSE GUIADANCE LEVELS FOR MAMMOGRAPHY FOR A TYPICAL ADULT PATIENT
| Average glandilar dose per cranio-caudal projection* |
| 1 mGy (without grid) |
| 3 mGy (with grid) |
*Dtermined in a 4.5 cm compressed breast consisting of 50% glandular and 50% adipose tissue, for film-screen systems and dedicated Mo-target Mo-filter mammography units.
----- go top -------
TABLE ３－４ DOSE RATE GUIADANCE LEVELS FOR FLUOROSCOPY FOR A TYPICAL ADULT PATIENT
| Mode of operation |
Entrance surface dose rate*
( mGy/min ) |
| Normal |
25 |
| High level** |
100 |
* In air with backscatter
** For flouroscopes that have an optional 'high level' operational mode, such as those frequently used in interventional radiology.
p280
----- go top -------