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 R
GUIDANCE LEVELS OF
DOSE, DOSE RATE AND ACTIVITY
FOR MEDICAL EXPOSURE
GUIDANCE LEVELS FOR DIAGNOSTIC RADIOLOGICAL PROCEDURES
TABLE R|P GUIDANCE LEVELS OF DOSE FOR DIAGNOATIC RADIOGRAPHY FOR A TYPICAL ADULT PATIENT
TABLE R|Q DOSE GUIADANCE LEVELS FOR COMPUTED TOMOGRAPHY FOR A TYPICAL ADULT PATIENT
TABLE R|R DOSE GUIADANCE LEVELS FOR A TYPICAL ADULT PATIENT
TABLE R|S DOSE RATE GUIADANCE LEVELS FOR FLUOROSCOPY FOR A TYPICAL ADULT PATIENT
GUIADANCE LEVELS FOR DIAGNOSTIC PROCEDURES IN NUCLEAR MEDICINE
TABLE R|T GUIADANCE LEVELS OF ACTIVITY FOR PROCEDURES IN NUCLEAR MEDICINE FOR A TYPICAL ADULT PATIENT
GUIADANCE LEVELS OF ACTIVITY FOR DISCHARGE FROM HOSPITAL
TABLE R|U GUIADANCE LEVEL FOR MAXIMUM ACTIVITY FOR PATIENTS IN THERAPY ON DISCHARGE FROM HOSPITAL
TABLE R|P 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 R|Q 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 R|R 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 R|S 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 -------