Combining Coronary with Carotid and Cerebrovascular Angiography Using Prospective <scp>ECG</scp> Gating and Iterative Reconstruction with 256‐slice <scp>CT</scp>

Zhang, Jinling; Liu, Bailu; Zhao, Yanming; Liang, Hongwei; Wang, Guokun; Wan, Yong; Huang, Ya-Hua; Shen, Baogen

doi:10.1111/echo.12830

Cited by 9 publications

(9 citation statements)

References 25 publications

(38 reference statements)

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“…The main analysis included: pulmonary artery (MPR), surface reconstruction (MPR), surface reconstruction (CPR), the development of the heart structure, the variations in the structure of the heart, the vascular variation of the surrounding blood vessels, the degree of aortic ride, the development of the coronary arteries and the development of the surrounding organs. MPR has the greatest effect, position, short axis and four‐chamber position to show the clearest plane of the lesion as an analysis image . Figure shows an example of tetralogy of Fallot by a 64‐slice spiral CT scan.…”

Section: Methodsmentioning

confidence: 99%

Comparison of echocardiography and 64‐slice spiral computed tomography in the diagnosis of congenital heart disease in children

Mei

Nie

Yang

et al. 2018

J of Cellular Biochemistry

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The diagnosis of congenital heart disease in children has been an issue in the medical community. Timely diagnosis and treatment can provide a greater guarantee for children's healthy growth. In recent years, there have been more and more studies on the diagnosis of congenital heart disease in children. This paper compares the advantages and disadvantages of echocardiography and 64-slice spiral computed tomography (CT) in the diagnosis of congenital heart disease in children. In clinical trials, we also tested 64 patients with spiral computed tomography (SCT) and transthoracic echocardiography (TTE) detection of patients and then confirmed the accuracy of the diagnosis by the surgical methods. The two methods of detection, the rate of missed diagnosis, and the rate of misdiagnosis were counted. Through the test results and pathological diagnosis results, the diagnostic accuracy of the two methods were all above 90%, each with its own advantages and disadvantages. The sensitivity of echocardiographic in detecting intracardiac structure abnormalities was relatively high, but when the diagnosis of extracardiac structural abnormalities less than 64-slice spiral CT method, misdiagnosis of TTE was mainly due to extracardiac vascular malformations. Therefore, it is recommended to combine the two methods to improve the diagnosis of congenital heart disease in children.

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Section: Methodsmentioning

confidence: 99%

Comparison of echocardiography and 64‐slice spiral computed tomography in the diagnosis of congenital heart disease in children

Mei

Nie

Yang

et al. 2018

J of Cellular Biochemistry

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“…Images were reconstructed using a section thickness of 0.8-1.0 mm with a hybrid iterative reconstruction algorithm (iDose) 4 with interval of 0.45 mm. Volume-rendered, maximum intensity projection, multiplanar reformatted, and curved planar reformatted images were generated to evaluate the cervicocerebral arteries 18 .…”

Section: Image Analysismentioning

confidence: 99%

Spotty Calcium on Cervicocerebral Computed Tomography Angiography Associates With Increased Risk of Ischemic Stroke

Zhang

Gan

et al. 2019

Stroke

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Background and Purpose— Cervicocerebral vascular calcification on computed tomography angiography is a known sign of advanced atherosclerosis. However, the clinical significance of calcification pattern remains unclear. In this study, we aimed to investigate the potential association between spotty calcium and acute ischemic stroke. Methods— This study included patients with first-time nonlacunar ischemic stroke (N=50) confirmed by brain magnetic resonance imaging or nonenhanced head computed tomography, as well as control subjects with asymptomatic carotid atherosclerosis (N=50) confirmed by carotid ultrasonography. Subjects in both groups underwent contrast-enhanced cervicocerebral computed tomography angiography within a week after the initial imaging examination. Spotty calcification was evaluated at 11 arterial segments commonly affected by atherosclerosis along the carotid and vertebrobasilar circulation. Statistical analysis was performed comparing the frequency and spatial pattern of spotty calcification between the 2 groups. Results— Spotty calcification in the Stroke group was markedly more prevalent than that in the Control group (total SC count: 8.74±4.96 versus 1.84±1.82, P <0.001). The odds ratio (95% CI) for stroke was 2.49 (1.55–4.00) for spotty calcification at bilateral carotid bifurcation, 1.52 (1.13–2.04) at carotid siphon, and 1.98 (1.45–2.69) at all evaluated locations. A total number of 3 spotty calcifications were determined as the optimal cutoff threshold for increased risk of stroke. Spotty calcium showed significantly greater area under the receiver operating characteristics curve than total calcium volume irrespective of size (0.88 versus 0.77). Within the Stroke group, ipsilateral lateral side showed significantly more spotty calcium than the contralateral side (5.18±3.05 versus 3.56±2.67, P <0.001). Conclusions— Nonlacunar ischemia stroke was associated with markedly increased incidence of spotty calcification with a distinct spatial pattern on cervicocerebral computed tomography compared with subclinical atherosclerosis, suggesting the potential role of spotty calcification for improving the risk stratification for ischemic stroke.

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“…However, these studies were conservative with a high tube voltage (100 or 120 kV) and high concentration contrast agent (370 mg/ml), and did not utilize the advantages of 128-slice DSCT, particularly by combining the iterative algorithm and ultra-low tube voltage to reduce the radiation dose for the patients of standard body type. Cardiovascular and cerebrovascular imaging was also performed with 256-slice CT and first-generation DSCT, with a higher radiation dose and amount of the contrast agent when compared with those of the second-generation DSCT (12,13).…”

Section: Introductionmentioning

confidence: 99%

Ultra‑low dose one‑step CT angiography for coronary, carotid and cerebral arteries using 128‑slice dual‑source CT: A feasibility study

et al. 2019

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Atherosclerotic diseases are systemic and patient outcomes depend on comprehensive imaging evaluation. Computed tomography angiography (CTA) is a powerful tool used to assess atherosclerosis. However, the scanning protocol is designed for cardiovascular and cerebrovascular imaging, which require considerations into the radiation dose, contrast agent and image quality. The purpose of the present study was to evaluate ultra-low dose one-step CTA for coronary, carotid and cerebral arteries with a low concentration contrast agent. A total of 78 patients were enrolled and randomly divided into two groups: Group A (n=38) and B (n=40). High-pitch CTA for coronary, carotid and cerebral arteries with a tube voltage of 70 or 80 kVp and 40 ml contrast agent (270 mgI/ml) was performed by a 128-slice dual-source CT scanner for group A. Standard high-pitch CTA with a tube voltage of 100 kVp and 60 ml contrast agent (370 mgI/ml) was conducted for group B. The image quality, radiation dose and amount of contrast agent in group A were evaluated and compared with group B. The dose length product for groups A and B was 62.95±21.54 vs. 160.15±15.13 mGy cm, respectively (t=−23.157, P<0.001). The mean total iodine content was 10.8±0 mg for group A and 22.2±0 mg for group B. In total, 99.4% of the arterial segments could be assessed for the two groups ( χ 2 =0.267, P=0.606). The results revealed that ultra-low dose one-step high-pitch CTA can provide assessable image quality, and minimize the radiation dose and contrast agent.

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Combining Coronary with Carotid and Cerebrovascular Angiography Using Prospective ECG Gating and Iterative Reconstruction with 256‐slice CT

Cited by 9 publications

References 25 publications

Comparison of echocardiography and 64‐slice spiral computed tomography in the diagnosis of congenital heart disease in children

Comparison of echocardiography and 64‐slice spiral computed tomography in the diagnosis of congenital heart disease in children

Spotty Calcium on Cervicocerebral Computed Tomography Angiography Associates With Increased Risk of Ischemic Stroke

Ultra‑low dose one‑step CT angiography for coronary, carotid and cerebral arteries using 128‑slice dual‑source CT: A feasibility study

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