2010 Fiscal Year Final Research Report
Evaluation of organ-absorbed dose in ECG-gated coronary CTA
| Project/Area Number |
21791175
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Radiation science
|
|---|
| Research Institution | Kanazawa University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2009 – 2010
|
| Keywords | エックス線 / CT / 被ばく / 冠動脈 / 吸収線量 |
|---|
| Research Abstract |
It was confirmed that radiation doses absorbed by thoracic organs during ECG-gated coronary CTA were different according to the acquisition technique and heart rate. The estimated lifetime attributable risks of lung cancer incidence in patients who underwent ECG-gated coronary CTA were 0.006% with the ECG-gated high-pitch dual-spiral mode, 0.034% with the ECG-gated step-and-shoot mode, and 0.073% with the ECG-gated low-pitch spiral mode, respectively. Each acquisition mode should be selected appropriately, and it is necessary to carefully consider the risk for deterioration of image quality when the ECG-gated high-pitch dual-spiral mode is applied.
|
Research Products
(13 results)
