Imaging of coronary artery fistulas by multidetector computed tomography: is multidetector computed tomography
Fehmi Kacmaz1, Nilgun Isiksalan Ozbulbul, Omer Alyan
1Cardiology Clinics, Turkish Society of Cardiology, Ankara, Turkey. kacmazfehmi@superonline.com
Insights
Multidetector computed tomography (MDCT) shows 73% sensitivity for detecting coronary artery fistulas (CAFs). This advanced imaging is particularly effective for CAFs between vascular structures, offering an alternative to coronary angiography.
Area of Science:
- Cardiovascular Imaging
- Diagnostic Radiology
Background:
- Coronary angiography is the gold standard for diagnosing coronary artery fistulas (CAFs).
- Multidetector computed tomography (MDCT) is an emerging technique for visualizing coronary artery anatomy, including stenosis, anomalies, and fistulas.
Purpose of the Study:
- To evaluate the diagnostic accuracy and sensitivity of MDCT in identifying patients with coronary artery fistulas (CAFs).
Main Methods:
- A study involving 13 patients with 15 previously diagnosed CAFs using coronary angiography.
- MDCT was performed on all patients, with results compared against coronary angiography to determine MDCT sensitivity.
Main Results:
- MDCT successfully visualized 11 out of 15 CAFs, yielding an overall sensitivity of 73%.
- Sensitivity was higher (87%) for CAFs coursing between vascular structures, but lower (58%) for those between coronary arteries and cardiac chambers.
Conclusions:
- While coronary angiography remains the gold standard, MDCT presents a viable alternative for CAF diagnosis.
- MDCT's high spatial resolution and ability to depict anatomical relationships make it especially useful for characterizing CAFs between vascular structures, including their origin, course, and drainage.
Background:
Coronary angiography is the gold standard for diagnosing coronary artery fistulas (CAFs). Multidetector computed tomography (MDCT) is a recently developed imaging technique for detecting coronary artery stenosis, coronary artery anomalies, and coronary artery fistulas and their courses.
Objective:
We aimed to determine accuracy or sensitivity of MDCT in patients having CAF.
Method:
We evaluated 13 patients with 15 CAFs detected earlier by coronary angiography. MDCT was carried out on all patients and the results were compared with coronary angiography, following which, sensitivity of MDCT was detected.
Results:
Eleven of 15 CAFs were shown on MDCT and the overall sensitivity of MDCT was found to be 73%. Seven of 8 CAFs that coursed between two vascular structures were detected and the sensitivity of MDCT in this group was found to be 87%. However, the sensitivity of 58% of MDCT in patients with fistula coursing between coronary arteries and cardiac chambers was found.
Conclusion:
Although coronary angiography is the gold standard diagnostic test for detection of CAF, MDCT may be an alternative test, especially, for CAF coursing between vascular structures, to detect origin, course, and the drainage site of fistula through its excellent spatial resolution and ability to show relationship of anatomic structures.
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