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Application of double low dose combined low flow injection in coronary dual‐source coronary computed tomography angiography.

Purpose: This study was aimed to explore the feasibility of lower tube voltage, low volumes of contrast medium, and low flow injection in prospective electrocardiogram (ECG)‐triggered high‐pitch dual‐source coronary computed tomography angiography (CCTA) for coronary artery imaging. Material and Met...

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Published in:Echocardiography Vol. 35; no. 9; pp. 1442 - 1448
Main Author: Tang, Zhenhua
Format: pictorial research tables/charts Journal Article
Published: Wiley-Blackwell Sep2018
Online Access:View this record in EBSCOhost
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      dt: Sep2018
      vid: 35
      iid: 9
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      pub: Wiley-Blackwell
      place: Malden, Massachusetts
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        131755073
        131755073
        10.1111/echo.14036
        131755073
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      tig:
        atl: Application of double low dose combined low flow injection in coronary dual‐source coronary computed tomography angiography.
      aug:
        au: Tang, Zhenhua
        affil: Department of Medical Imaging, Xin Tai People’s Hospital, Taian, China
      sug:
        subj:
          Contrast Media
          Coronary Vessels
          Human
          Diagnostic Imaging
          Tomography, X-Ray Computed
          Surgery, Reconstructive
          Radiation
      ab: Purpose: This study was aimed to explore the feasibility of lower tube voltage, low volumes of contrast medium, and low flow injection in prospective electrocardiogram (ECG)‐triggered high‐pitch dual‐source coronary computed tomography angiography (CCTA) for coronary artery imaging. Material and Methods: A total of 140 patients with body mass index (BMI) ranging from 18.5 to 24.3 kg/m2 and heart rate (HR) lower than 65 times/min underwent CCTA were divided randomly into two groups. The enhanced CT value and noise as well as signal‐to‐noise ratio (SNR) and contrast‐to‐noise ratio (CNR) were calculated. Coronary artery was evaluated by double‐blind method using a four‐point grading scale. Results: No significant differences were found in the average enhanced CT value, noise, SNR, and CNR of all segments between the two groups (P > .05). Meanwhile, effective radiation dosages in group A were markedly lower than those in group B (P < .01). Conclusion: The prospective ECG‐triggered high‐pitch dual‐source CCTA with low voltage, contrast medium, and flow rate injection using sinogram affirmed iterative reconstruction is feasible which can observably reduce radiation and obtain satisfactory images.
      pubtype: Academic Journal
      doctype:
        pictorial
        research
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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