Table 3.
Organ and Effective Doses of Head Scans and Body Scans
| Organs | Mean ± Standard Deviation (Min—Max) | ||
|---|---|---|---|
| Male | Female | All | |
| Head Scan | |||
| Lens of eye | 60.1 ± 13.0 (54.6—114.8) | 59.7 ± 6.7 (55.2—118.6) | 59.9 ± 10.3 (54.6—118.6) |
| Brain | 51.9 ± 11.3 (46.2—99.3) | 46.6 ± 5.2 (43.1—92.7) | 49.3 ± 9.2 (43.1—99.3) |
| Salivary glands | 41.9 ± 9.1 (38.0—79.9) | 49.6 ± 5.6 (45.9—98.5) | 45.8 ± 8.4 (38.0—98.5) |
| Extrathoracic region | 37.2 ± 8.1 (33.7—70.8) | 44.6 ± 5.0 (41.2—88.6) | 40.9 ± 7.7 (33.7—88.6) |
| Red bone marrow | 5.7 ± 1.2 (5.2—10.8) | 6.6 ± 0.7 (6.1—13.1) | 6.1 ± 1.1 (5.2—13.1) |
| Effective Dose | 2.8 ± 0.6 (2.5—5.3) | 2.7 ± 0.3 (2.5—5.3) | 2.7 ± 0.5 (2.5—5.3) |
| Effective Dose_A96* | 2.3 ± 0.5 (2.0—4.5) | 2.1 ± 0.2 (2.0—4.0) | 2.2 ± 0.4 (2.0—4.5) |
| Chest Scan | |||
| Breasts | 7.8 ± 2.3 (5.0—12.6) | 6.8 ± 1.9 (4.2—11.4) | 7.3 ± 2.2 (4.2—12.6) |
| Colon | 5.5 ± 1.5 (3.2—9.6) | 4.9 ± 1.3 (2.4—11.2) | 5.2 ± 1.4 (2.4—11.2) |
| Esophagus | 6.3 ± 1.3 (3.6—9.3) | 6.6 ± 1.8 (4.1—11.4) | 6.4 ± 1.6 (3.6—11.4) |
| Gonads | 0.3 ± 0.1 (0.2—0.5) | 0.5 ± 0.1 (0.3—1.1) | 0.4 ± 0.2 (0.2—1.1) |
| Liver | 10.1 ± 2.1 (6.3—16.1) | 8.7 ± 2.1 (4.9—17.1) | 9.4 ± 2.2 (4.9—17.1) |
| Lungs | 9.4 ± 1.9 (6.3—13.8) | 8.8 ± 2.3 (5.5—15.5) | 9.1 ± 2.1 (5.5—15.5) |
| Red bone marrow | 3.7 ± 0.6 (2.4—5.1) | 3.4 ± 0.8 (2.1—5.9) | 3.6 ± 0.8 (2.1—5.9) |
| Stomach | 8.0 ± 1.6 (5.4—12.8) | 7.1 ± 1.6 (3.8—14.4) | 7.5 ± 1.7 (3.8—14.4) |
| Thyroid | 9.5 ± 2.1 (5.7—16.1) | 10.7 ± 3.2 (6.2—20.4) | 10.1 ± 2.8 (5.7—20.4) |
| Urinary bladder | 0.6 ± 0.1 (0.3—0.9) | 0.5 ± 0.1 (0.3—1) | 0.5 ± 0.1 (0.3—1) |
| Effective Dose | 6.3 ± 1.0 (4.2—8.4) | 5.4 ± 1.2 (3.2—9.8) | 5.9 ± 1.2 (3.2—9.8) |
| Effective Dose_A96* | 5.9 ± 1.6 (2.8—9.2) | 4.6 ± 1.9 (2.1—9.2) | 5.2 ± 1.9 (2.1—9.2) |
| Abdomen and Pelvis Scan | |||
| Breasts | 6.8 ± 3.5 (2.7—15.8) | 4.2 ± 1.8 (2.5—8.1) | 5.5 ± 3.1 (2.5—15.8) |
| Colon | 15.5 ± 1.7 (12.5—19.5) | 16.4 ± 1.6 (12.8—20.7) | 16.0 ± 1.7 (12.5—20.7) |
| Esophagus | 1.0 ± 0.1 (0.8—1.3) | 1.3 ± 0.2 (1.1—1.9) | 1.1 ± 0.2 (0.8—1.9) |
| Gonads | 3.4 ± 0.7 (2.3—5.9) | 13.0 ± 1.9 (8.8—17.3) | 8.2 ± 5.0 (2.3—17.3) |
| Liver | 17.9 ± 2.4 (14.1—23.4) | 17.0 ± 1.9 (13.2—23.4) | 17.5 ± 2.2 (13.2—23.4) |
| Lungs | 6.2 ± 0.8 (4.9—7.9) | 5.9 ± 0.7 (4.8—8.3) | 6.0 ± 0.7 (4.8—8.3) |
| Red bone marrow | 5.5 ± 0.5 (4.5—6.8) | 5.9 ± 0.5 (4.9—7.6) | 5.7 ± 0.6 (4.5—7.6) |
| Stomach | 13.5 ± 1.6 (10.4—17.9) | 12.8 ± 1.4 (9.7—17.1) | 13.1 ± 1.5 (9.7—17.9) |
| Thyroid | 0.7 ± 0.1 (0.5—1.1) | 0.8 ± 0.1 (0.6—1.1) | 0.7 ± 0.1 (0.5—1.1) |
| Urinary bladder | 11.1 ± 1.0 (9.1—14.8) | 13.6 ± 1.9 (9.4—18.2) | 12.3 ± 1.9 (9.1—18.2) |
| Effective Dose | 8.9 ± 0.9 (7.1—10.9) | 8.6 ± 0.8 (7.2—11.7) | 8.7 ± 0.9 (7.1—11.7) |
| Effective Dose_A96* | 13.1 ± 3.0 (8.6—21.6) | 12.0 ± 3.0 (8.3—19.8) | 12.6 ± 3.1 (8.3—21.6) |
| Chest, Abdomen and Pelvis Scan | |||
| Breasts | 15.8 ± 3.0 (8.2—20.0) | 12.7 ± 2.4 (8.6—19.1) | 14.3 ± 3.1 (8.2—20.0) |
| Colon | 15.5 ± 1.5 (11.1—19.6) | 17.2 ± 2.0 (11.3—22.7) | 16.3 ± 2.0 (11.1—22.7) |
| Esophagus | 7.6 ± 1.7 (5.1—11.4) | 8.8 ± 1.9 (6.7—14) | 8.2 ± 1.9 (5.1—14) |
| Gonads | 3.7 ± 0.8 (2.5—5.9) | 13.6 ± 1.9 (8—17.8) | 8.6 ± 5.2 (2.5—17.8) |
| Liver | 19.1 ± 2.4 (14.3—24.5) | 18.8 ± 2.2 (14.5—24.8) | 19.0 ± 2.3 (14.3—24.8) |
| Lungs | 15.1 ± 2.6 (10.3—21.7) | 14.9 ± 2.4 (12.1—22.3) | 15.0 ± 2.5 (10.3—22.3) |
| Red bone marrow | 8.4 ± 1 (6.5—10.5) | 8.8 ± 0.9 (7.4—11.2) | 8.6 ± 1 (6.5—11.2) |
| Stomach | 15.8 ± 2.0 (11.0—20.9) | 15.7 ± 1.7 (10.7—20.6) | 15.8 ± 1.9 (10.7—20.9) |
| Thyroid | 10.7 ± 2.4 (6.6—21.3) | 13 ± 3.3 (9.1—22) | 11.8 ± 3.1 (6.6—22) |
| Urinary bladder | 10.9 ± 1.0 (8.3—14.1) | 14.2 ± 1.8 (8.7—18.6) | 12.5 ± 2.2 (8.3—18.6) |
| Effective Dose | 13.0 ± 1.4 (9.9—15.9) | 12.6 ± 1.3 (10.6—16.8) | 12.8 ± 1.3 (9.9—16.8) |
| Effective Dose_A96* | 17.1 ± 3.8 (11.3—25.6) | 14.7 ± 3.7 (10.3—24.4) | 15.9 ± 3.9 (10.3—25.6) |
*
Effective dose derived by using the DLP in our study and the k factors in AAPM report No.96.