Subtracted 3D CT angiography for the evaluation of intracranial aneurysms in 256-slice multidetector CT: usefulness of the 80-kVp plus compact contrast medium bolus protocol

Kidoh, Masafumi; Nakaura, Takeshi; Ogata, Takaaki; Takashima, Hiroki; Yoshikawa, Makoto; Uemura, Sachiko; Harada, Kazunori; Yamashita, Yasuyuki

doi:10.1007/s00330-013-2928-5

Cited by 6 publications

(6 citation statements)

References 22 publications

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“…Most of the available studies using low dose CTA focus on great vessels, such as carotid artery [ 8 ] and pulmonary artery [ 9 ]. Even in those articles referring to neurovascular imaging with low tube voltage, the results were inconsistent and the cases involved in those studies were limited [ 10 – 13 ]. In this study, a large sample was enrolled and assigned into conventional voltage CTA (C-CTA) group and low voltage CTA (L-CTA) group.…”

Section: Introductionmentioning

confidence: 99%

The Value of Cerebral CT Angiography with Low Tube Voltage in Detection of Intracranial Aneurysms

Tang

Lin

et al. 2015

BioMed Research International

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Objective. The aim of this study is to investigate the value of cerebral CT angiography (CTA) with low tube voltage in detection of intracranial aneurysms. Materials and Methods. A total of 294 consecutive patients with spontaneous subarachnoid hemorrhage (SAH) were enrolled in this study and randomly assigned into conventional voltage CTA (C-CTA) group and low voltage CTA (L-CTA) group. The objective and subjective image qualities were analyzed and compared between C-CTA and L-CTA groups. With the results of 3D-DSA as “gold standard,” the sensitivity, specificity, and accuracy of C-CTA and L-CTA in diagnosis of aneurysms were calculated and compared with each other. Results. Compared with group C-CTA, the CT dose index volume (CTDIvol) of group L-CTA reduced by 35.65%. There were no significant differences between C-CTA and L-CTA groups regarding objective and subjective image qualities. The sensitivity, specificity, and accuracy of L-CTA in diagnosis of aneurysms were 95.16%, 99.72%, and 99.42%, respectively. There were no significant differences in sensitivity, specificity, and accuracy between the C-CTA and L-CTA groups. Conclusion. The value of cerebral CTA with 100 kV low tube voltage in detection of intracranial aneurysms is significant, and it should be recommended as a routine scan method.

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Section: Introductionmentioning

confidence: 99%

The Value of Cerebral CT Angiography with Low Tube Voltage in Detection of Intracranial Aneurysms

Tang

Lin

et al. 2015

BioMed Research International

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“…Dose reduction in CTA of the head and neck was considered in 20 articles, 10 studies investigated intracranial aneurysms, including 5 studies that used a lower CM volume in the LD group [ 39 , 40 , 58 , 61 , 62 ]. Another 10 studies focused on other cerebrovascular diseases, including 2 studies that used a lower CM volume in the LD group [ 38 , 68 ].…”

Section: Resultsmentioning

confidence: 99%

“…Dose reductions ranged from 16–82%, and none of the studies showed a relevant impairment of subjective IQ for the LD compared to the SD protocol. Specifically, studies using lower CM volume in the LD group consistently demonstrated improved IQ [ 39 , 40 , 58 , 61 , 62 ]. Reported doses in terms of CTDI vol and DLP ranged from 6.4–59.2 mGy and 116.0–932.6 mGy * cm, respectively.…”

Section: Resultsmentioning

confidence: 99%

Computed Tomography of the Head

et al. 2023

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In 1971, the first computed tomography (CT) scan was performed on a patient’s brain. Clinical CT systems were introduced in 1974 and dedicated to head imaging only. New technological developments, broader availability, and the clinical success of CT led to a steady growth in examination numbers. Most frequent indications for non-contrast CT (NCCT) of the head include the assessment of ischemia and stroke, intracranial hemorrhage and trauma, while CT angiography (CTA) has become the standard for first-line cerebrovascular evaluation; however, resulting improvements in patient management and clinical outcomes come at the cost of radiation exposure, increasing the risk for secondary morbidity. Therefore, radiation dose optimization should always be part of technical advancements in CT imaging but how can the dose be optimized? What dose reduction can be achieved without compromising diagnostic value, and what is the potential of the upcoming technologies artificial intelligence and photon counting CT? In this article, we look for answers to these questions by reviewing dose reduction techniques with respect to the major clinical indications of NCCT and CTA of the head, including a brief perspective on what to expect from current and future developments in CT technology with respect to radiation dose optimization.

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Section: Introductionmentioning

confidence: 99%

“…Noninvasive carotid and cerebrovascular angiography with multidetector computed tomography (CT) has shown promising results with regard to the detection and quantification of craniocervical vascular disease. 1,2 However, the significant drawback of routine CT angiography (RCTA) is that vessels surrounded by bone and calcification can be obscured. As a consequence, aneurysms at the skull base that arise from the intra-cavernous or intracranial carotid artery may be obscured by bone, and the assessment of stenosis in the adjacent skull base part of the internal carotid artery is poor.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of image quality in carotid and cerebrovascular disease: a comparative study between subtraction and routine computed tomography angiography

et al. 2016

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Subtracted 3D CT angiography for the evaluation of intracranial aneurysms in 256-slice multidetector CT: usefulness of the 80-kVp plus compact contrast medium bolus protocol

Cited by 6 publications

References 22 publications

The Value of Cerebral CT Angiography with Low Tube Voltage in Detection of Intracranial Aneurysms

The Value of Cerebral CT Angiography with Low Tube Voltage in Detection of Intracranial Aneurysms

Computed Tomography of the Head

Evaluation of image quality in carotid and cerebrovascular disease: a comparative study between subtraction and routine computed tomography angiography

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