Bibliographic Details
| Title: |
Cervical CT Angiography: The Advantage of Ultra-High-Resolution CT Versus Conventional HRCT. |
| Authors: |
Ito, Junji1 (AUTHOR) clatsune@yahoo.co.jp, Yamashiro, Tsuneo1,2 (AUTHOR) m04149@yahoo.co.jp, Tomita, Hayato1,3 (AUTHOR) jana1150@nantoku.org, Heianna, Joichi1 (AUTHOR) sadayuki@med.u-ryukyu.ac.jp, Murayama, Sadayuki1 (AUTHOR) nishie_a@med.u-ryukyu.ac.jp, Nishie, Akihiro1 (AUTHOR) |
| Source: |
Cancers. Nov2024, Vol. 16 Issue 22, p3866. 11p. |
| Subject Terms: |
*CRANIAL radiography, *CAROTID artery, *DIAGNOSTIC imaging, *RESEARCH funding, *BLOOD vessels, *COMPUTED tomography, *HEAD & neck cancer, *RETROSPECTIVE studies, *DESCRIPTIVE statistics, *COMPUTERS in medicine, *IMAGING phantoms, *COMPARATIVE studies, *INTRA-arterial infusions, NECK radiography |
| Abstract: |
Simple Summary: Intra-arterial infusion chemotherapy is an effective therapeutic option for malignant head and neck tumors. Precise advanced information on the arteries supplying tumors enables us to achieve a good treatment effect; shorten the operation time; and minimize both radiation exposure and the use of contrast medium. Therefore, a preoperative assessment of patients is clinically important. Although ultra-HRCT (U-HRCT) provides improved CT images with 0.25-millimeter slice thickness reconstruction, the usefulness of U-HRCT for CT angiography (CTA) has also been recently reported. We hypothesized that U-HRCT might contribute to the improvement in image quality for cervical CTA as well. Based on the investigation from the points of view of both phantom and patient studies, U-HRCT provided higher image quality in terms of visualization of cervical arteries than conventional HRCT. Background/Objectives: Pre-treatment depiction of the cervical arteries is important for better intra-arterial infusion therapy of malignant head and neck tumors. There have not been any studies on the image quality of ultra-high-resolution computed tomography (U-HRCT) for cervical CT angiography (CTA). The aim of this study is to evaluate the advantages of U-HRCT over conventional HRCT for cervical CTA; Methods: Forty-one patients underwent cervical CTA prior to selective intra-arterial infusion chemotherapy for malignant head and neck tumors. Twenty-two patients were scanned on conventional HRCT, while the remaining nineteen on U-HRCT. U-HRCT super-high-resolution (SHR) mode was used in 8 patients, while high-resolution (HR) mode was used in 11 patients. On CTA, the visibility of 18 branches from bilateral external carotid arteries was evaluated using a 5-point scale by three radiologists in consensus. Prior to the patient study, a head–neck CT phantom study regarding mock arterial density and its visibility was performed; Results: Regarding the patient study, the mean score of the SHR mode for visibility was significantly higher than that of conventional HRCT in 17 of 18 arteries (p < 0.05). The mean score of the HR mode for visibility was significantly higher than that of conventional HRCT in all arteries (p < 0.05). Regarding the phantom study, the maximum density of the SHR mode was significantly higher than that of conventional HRCT for mock proximal and peripheral arteries (p < 0.01). In addition, the visual score of the SHR mode for mock arteries was significantly higher than that of conventional HRCT (p < 0.05); Conclusions: U-HRCT provides higher image quality in terms of visualization of the arteries than conventional HRCT in cervical CTA. [ABSTRACT FROM AUTHOR] |
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