Evaluation of high-pitch flash scan for pulmonary venous CTA on a 128-slice dual source CT: compared with prospective ECG-triggered sequence scan
| العنوان: | Evaluation of high-pitch flash scan for pulmonary venous CTA on a 128-slice dual source CT: compared with prospective ECG-triggered sequence scan |
|---|---|
| المؤلفون: | Bo Liu, Huan Zhang, Li Xiu Cao, Yan Yan Zhang, Fu Hua Yan, Zi Lai Pan, Ke Min Chen, Wen Jie Yang |
| المصدر: | The International Journal of Cardiovascular Imaging. 29:1557-1564 |
| بيانات النشر: | Springer Science and Business Media LLC, 2013. |
| سنة النشر: | 2013 |
| مصطلحات موضوعية: | Adult, Male, medicine.medical_specialty, Image quality, Cardiac-Gated Imaging Techniques, Signal-To-Noise Ratio, Radiation Dosage, Electrocardiography, Predictive Value of Tests, Hounsfield scale, Atrial Fibrillation, Multidetector Computed Tomography, Humans, Medicine, Radiology, Nuclear Medicine and imaging, Prospective Studies, Prospective cohort study, Cardiac imaging, Aged, Observer Variation, medicine.diagnostic_test, business.industry, Reproducibility of Results, Atrial fibrillation, Phlebography, Middle Aged, medicine.disease, Signal-to-noise ratio (imaging), Pulmonary Veins, Predictive value of tests, Catheter Ablation, Radiographic Image Interpretation, Computer-Assisted, Female, Radiology, Cardiology and Cardiovascular Medicine, business, Nuclear medicine |
| الوصف: | To compare the image quality (IQ) and radiation dose of high-pitch scan and prospective ECG-triggered sequence scan on a 128-slice DSCT system for patients with atrial fibrillation (AF). Pulmonary venous (PV) CTA was performed with two protocols, including high-pitch scan and prospective ECG-triggered sequence scan. For each protocol, 20 sex, age and body-mass-index (mean 24.2 kg/m(2)) matched patients were identified. Two experienced radiologists, who were blinded to the scan protocols, independently graded the CT images of the two groups by a 5-point scale for subjective IQ assessment. Measured CT attenuation (Hounsfield units ± standard deviation), signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) at various anatomic locations were also recorded for objective IQ evaluation. Radiation exposure parameters [dose length product (DLP) and effective radiation dose (ERD)] were compared. Twenty-three patients (57.5 %) showed an ECG pattern of AF in total. Subjective IQ was rated excellent in 100 % for the high-pitch scan group, while minor step artifacts were observed in two patients (10 %) with arrhythmia for the prospective ECG-triggered sequence group. There was no significant difference on IQ, neither by subjective, nor by objective measures (SNR, CNR) between the two groups. The ERD of high-pitch flash scan and prospective ECG-triggered sequence scan were 0.9 (± 0.25) and 2.9 (± 0.69) mSv, respectively. Significantly lower radiation was achieved by using high-pitch flash scan (P < 0.05). High-pitch flash scan can provide similar subjective and objective IQ compared with prospective ECG-triggered sequence scan for PV CTA, while radiation exposure was significantly reduced. |
| تدمد: | 1573-0743 1569-5794 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::271d249e116f2355e9f8b0801716c7ae https://doi.org/10.1007/s10554-013-0227-5 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....271d249e116f2355e9f8b0801716c7ae |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 15730743 15695794 |
|---|