64 slice dual source ct scanner

Manufactured by Siemens

Sourced in United States

The 64-slice dual-source CT scanner is a medical imaging device that uses advanced technology to capture high-resolution images of the body. It features two x-ray sources and detectors that work simultaneously to acquire data, enabling faster scanning and reduced radiation exposure for patients.

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Lab products found in correlation

64 slice ct scanner, by Siemens (2 mentions) Syngo mmwp, by Siemens (1 mentions)

Close spelling variants of this product

64-slice dual-source CT Dual-source CT scanner CT scanners Siemens scanners

4 protocols using 64 slice dual source ct scanner

Cardiac CT Imaging Protocol for Coronary Plaque Analysis

Cited 1 time

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Cardiac computed tomography (CT) imaging was performed with a 64-slice CT scanner or 64-slice dual-source CT scanner (Siemens Medical Solutions), as previously described [11 (link), 13 (link)]. Parameters including number of subclinical coronary artery plaque segments and number of noncalcified coronary plaque segments were assessed using previously described analytic techniques [11 (link), 13 (link)].

Zanni M.V., Stone L.A., Toribio M., Rimmelin D.E., Robinson J., Burdo T.H., Williams K., Fitch K.V., Lo J, & Grinspoon S.K. (2017). Proprotein Convertase Subtilisin/Kexin 9 Levels in Relation to Systemic Immune Activation and Subclinical Coronary Plaque in HIV. Open Forum Infectious Diseases, 4(4), ofx227.

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Cardiac CT Angiography Protocol

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Cardiac computed tomography angiography (CCTA) imaging was performed using a 64-slice dual-source CT scanner (Siemens Medical Solutions, Malvem, PA, USA). The CCTA protocol has been described previously (13 (link),14 (link))(18 (link)). This protocol included a non-contrast CT for calculation of Agatston calcium score (19 (link)) and contrast-enhanced retrospectively-ECG gated CCTA for assessment of calcified and noncalcified coronary plaque segments. In addition, cine images were reconstructed throughout each phase of the cardiac cycle to assess ventricular function. An experienced cardiac radiologist reviewed the images to calculate the Agatston calcium score, for noncalcified or mixed coronary plaque, presence of moderate (50–69%) or severe (≥ 70%) stenosis, and for qualitative assessment of left ventricular function on a dedicated workstation (Siemens Syngo MMWP). Abnormal left ventricular systolic function was defined as an estimated left ventricular ejection fraction < 50%.

Fitch K.V., DeFilippi C., Christenson R., Srinivasa S., Lee H., Lo J., Lu M.T., Wong K., Petrow E., Sanchez L., Looby S.E., Hoffmann U., Zanni M, & Grinspoon S.K. (2016). Subclinical myocyte injury, fibrosis and strain in relationship to coronary plaque in asymptomatic HIV-infected individuals. AIDS (London, England), 30(14), 2205-2214.

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Cardiac Calcium Scoring by CT

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CAC score was assessed by non-contrast cardiac CT. CTA imaging using a 64-slice dual source CT scanner (Siemens Medical Solutions) was performed with a standardized protocol which included assessment of calcified and noncalcified plaque segments as previously described[19 (link), 20 (link)].

BOGORODSKAYA M., FITCH K.V., LU M., TORRIANI M., ZANNI M.V., LOOBY S.E., IYENGAR S., TRIANT V.A., GRINSPOON S.K., SRINIVASA S, & LO J. (2020). Measures of Adipose Tissue Redistribution and Atherosclerotic Coronary Plaque in HIV. Obesity (Silver Spring, Md.), 28(4), 749-755.

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Coronary Plaque Characterization by CCTA

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Coronary CTA was performed using a 64-slice CT scanner or 64-slice dual-source CT scanner (Siemens Medical Solutions), as previously detailed^{5 (link)6 (link)7 (link)8 (link)}. Experienced cardiovascular imagers blinded to participants’ clinical status assessed plaque parameters including: any plaque, plaque type (calcified, non-calcified), plaque with high-risk morphology features (positive remodeling, low attenuation), and obstructive plaque (≥ 70% stenosis). With respect to plaque morphology, high-risk plaque features were defined as follows: low attenuation plaque had a mean minimum attenuation < 40 Hounsfield Units; positively remodeled plaque had a [plaque segment diameter/reference segment diameter] > 1.05 indicating eccentric volume gain^{8 (link)}. Examples of select plaque characteristics are depicted in Figure 1. Plaque data on women vs. men were read by a limited number of experienced imagers, who had received similar training and employed the same diagnostic criteria.

Foldyna B., Fourman L.T., Lu M.T., Mueller M.E., Szilveszter B., Neilan T.G., Ho J.E., Burdo T.H., Lau E.S., Stone L.A., Toribio M., Srinivasa S., Looby S.E., Lo J., Fitch K.V, & Zanni M.V. (2018). Sex Differences in Subclinical Coronary Atherosclerotic Plaque Among Individuals with HIV on Antiretroviral Therapy. Journal of acquired immune deficiency syndromes (1999), 78(4), 421-428.

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