JRM
Journal of Radiology in Medicine

Journal of Radiology in Medicine is an international journal that published original research and articles in all areas of radiology. Its publishes original research articles, review articles, case reports, editorial commentaries, letters to the editor, educational articles, and conference/meeting announcements.

eISSN: 3023-6487
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Original Article
Multidetector computed tomography findings and 3 dimensional volume measurement of ıntraluminal thrombus in abdominal aort aneurysms
Abstract
Aims: To output imaging findings of intraluminal thrombus (ILT) and calculate its volume exactly with 3 Dimensional (3D) software, in infrarenal abdominal aorta aneurysms (AAA), by multidetector computed tomography (MDCT).
Methods: This was a retrospective study, with patient data included from January 2009 to May 2009 at Turkiye Yüksek İhtisas Hospital Radiology Department. Fifty patients (47 males, 3 females) with a mean age of 67 (47-85) who were referred with a pre-diagnosis of AAA and underwent MDCT were analyzed. Patients with aortic diameter of 30mm or more at the infrarenal level were included in the study. The patients was divided into 3 groups according to ADmax: ? 5cm, 5-7cm and ? 7cm (7). The relationship between parameters such as the widest diameter of the aneurysmatic segment, longitudinal length, location of the ILT and aneurysm volume were evaluated with the amount of ILT calculated by semi-automatic method using MDCT images obtained with 16 and 64-detector CT devices.
Results: The study was conducted on a total of 50 patients with an average age of 67 years (47 – 85), 47 (94%) men and 3 (6%) women. In the aneurysmatic segment, the maximum aortic diameter was measured as mean 5.6 cm (3.7–8.8cm), and longitudinal length was measured as mean 9.8 cm (4.9–17.1cm). Aneurysm volume was calculated as 188.8 cm³ (44.8–670.2 cm³) on average, and ILT volume as an average of 104.3 cm³ (11.8–474.7 cm³). A significant increase in ILT % over 5 cm diameter was found, while ILT % was lower until the maximum aorta diameter reached 5 cm. We found that ILT was concentrated mostly in anterior quadrant in 19 patients (38%).
Conclusion: There is a positive relationship between the thrombus volume(p= 0.0001) and the aneurysm volume (p= 0.0001) and the maximum diameter of the aneurysm. Since the volume measurements in our study are based on a semi-automatic method that completely separates the structures of interest from the rest by adjusting the threshold values, it’s more accurate than 2-dimensional conventional CT measurements based on mathematical calculations in which the thrombus area and the length of the aneurysm in axial sections were used.

Keywords : Abdominal aorta aneurysm (AAA), intraluminal thrombus (ILT), multidetector computed tomography (MDCT)

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Article available in :
Volume 2, Issue 3, 2025
Page : 49-52
https://doi.org/10.51271/JRM-0032
Article Information
Received : 01 May 2025
Accepted : 10 Haz 2025
Published : 07 Tem 2025
Corresponding Author :

Mihriban Alkan: Department of Radiology, Ankara Bilkent City Hospital, Ankara, Turkiye

[email protected]
Citation : Alkan M, Işıksalan Özbülbül N. Multidetector computed tomography findings and 3 dimensional volume measurement of intraluminal thrombus in abdominal aort aneurysms. J Radiol Med. 2025;2(3):49-52.

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