Comparing Radiation Dose of Cerebral Angiography Using Conventional and High kV Techniques: A Retrospective Study on Intracranial Aneurysm Patients and a Phantom Study

Abstract

Evaluation of patient radiation dose after the implementation of a high kV technique during a cerebral angiographic procedure is an important issue. This study aimed to determine and compare the patient radiation dose of intracranial aneurysm patients undergoing cerebral angiography using the conventional and high kV techniques in a retrospective study and a phantom study. A total of 122 cases (61 cases with conventional technique and 61 cases with high kV technique) of intracranial aneurysm patients, who underwent cerebral angiographic procedure and met the inclusion criteria, were recruited. The radiation dose and the angiographic exposure parameters were reviewed retrospectively. The radiation dose in the phantom study was conducted using nanoDotTM optically stimulating luminescence (OSLD), which were placed on the scalp of the head phantom, the back of the neck, and the phantom skin at the position of the eyes. The standard cerebral angiographic procedure using the conventional and high kV techniques was performed following the standard protocol. The results showed that the high kV technique significantly reduced patient radiation dose and phantom skin dose. This study confirms that the implementation of a high kV technique in routine cerebral angiography for aneurysm diagnosis provides an effective reduction in radiation dose. Further investigation of radiation dose in other interventional neuroradiology procedures, particularly embolization procedure, should be performed.

Image Quality and Radiation Dose of Conventional and Wide-Field High-Resolution Cone-Beam Computed Tomography for Cerebral Angiography: A Phantom Study

“…An increase in the FOV size may affect the spatial resolution, noise characteristics, low-contrast detectability, and radiation dose to the patients. Although some reports have described the physical evaluation, and radiation dose of C-HR CBCT, cerebral angiography, and computed tomography [20,[22][23][24][25][26][27][28], there are no reports on W-HR CBCT. The purpose of this study was two-fold: to evaluate the image quality and radiation dose of W-HR CBCT, compare it with C-HR CBCT, and determine the optimal image reconstruction for AIS-CBCT.…”

Evaluation of Radiation Exposure and Influential Factors in Cone-Beam Computed Tomography (CBCT) of the Head and Abdomen during Interventional Procedures

“…Yel et al [ 32 ] investigated the radiation dose and image quality of an extremity CBCT system with 55 imaging protocols and identified an optimized parameter setting that resulted in a dose reduction of 18.9% compared to the manufacturer’s recommended protocol. Kirisattayakul et al [ 33 ] demonstrated that the implementation of a high kV technique may provide an effective reduction in radiation dose. Our findings show the effects of BMI and gender on exposure parameter modulation in head and abdominal CBCT scans.…”