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Ultrasound Imaging of the Thoracic and Abdominal Aorta in Mice to Determine Aneurysm Dimensions
Published on: March 8, 2019
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CT-Ultrasound Fusion for Abdominal Aortic Aneurysm Measurement
Gil Zur1,2, Maisa Andraous1, Eyal Bercovich1
1Department of Radiology, Rambam Health Care Campus, HaAliya HaShniya St 8, Haifa, Israel, 3109601.
AJR. American Journal of Roentgenology
|December 12, 2019
Summary
CT-US fusion offers a more accurate method for measuring abdominal aortic aneurysms compared to conventional ultrasound. This technique avoids radiation and contrast risks, making it a promising surveillance tool.
Area of Science:
- Medical imaging
- Radiology
- Vascular surgery
Background:
- Abdominal aortic aneurysms (AAAs) require regular surveillance.
- Current methods like CT angiography (CTA) involve ionizing radiation and iodinated contrast.
- Ultrasound (US) is a safer alternative but can be operator-dependent and less accurate.
Purpose of the Study:
- To assess the accuracy of CT-US fusion for AAA measurement.
- To compare CT-US fusion with conventional US and CTA.
- To evaluate a radiation-free and contrast-free surveillance method for AAAs.
Main Methods:
- Retrospective comparison of measurements in 14 patients.
- Fusion of CTA data with conventional US images.
- Comparison of measurements from conventional US, CT-US fusion, and CTA.
Main Results:
- The mean measurement difference between conventional US and CTA was 0.50 cm.
- The mean measurement difference between CT-US fusion and CTA was 0.13 cm.
- CT-US fusion demonstrated significantly higher accuracy (p < 0.0005).
Conclusions:
- CT-US fusion is more accurate than conventional US for AAA measurement.
- This technique reduces operator dependence in AAA surveillance.
- CT-US fusion shows promise as an accurate, safe method for monitoring abdominal aortic aneurysms.
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