64 slice lightspeed vct

Manufactured by GE Healthcare

Sourced in Japan, United States

The 64-slice LightSpeed VCT is a computed tomography (CT) scanner developed by GE Healthcare. It is designed to capture high-resolution, three-dimensional images of the human body. The scanner utilizes a 64-slice detector array and advanced imaging technology to provide rapid data acquisition and image reconstruction.

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Lab products found in correlation

Ultravist 370, by Bayer (4 mentions) Ge lightspeed ultra 8, by GE Healthcare (4 mentions) Discovery ct750 hd, by GE Healthcare (1 mentions) Somatom drive, by GE Healthcare (1 mentions) Somatom force, by GE Healthcare (1 mentions) Somatom definition flash, by GE Healthcare (1 mentions) Revolution ct, by GE Healthcare (1 mentions) Ge discovery ct750 hd, by GE Healthcare (1 mentions) Somatom sensation 16, by Siemens (1 mentions) Somatom definition flash, by Siemens (1 mentions)

Close spelling variants of this product

Lightspeed VCT XTe-64 slice LightSpeed VCT 64 Slice CT Lightspeed VCT 64-slice spiral CT GE LightSpeed VCT 64-slice CT LightSpeed VCT 64-slice CT scanner General Electric LightSpeed VCT 64-slice platform LightSpeed VCT 64 slice scanner Lightspeed VCT 64 LightSpeed VCT LightSpeed 64

6 protocols using 64 slice lightspeed vct

Standardized Aortic CT Angiography Protocol

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All CT scans were performed using post-64-detector row CT scanners from Siemens (Somatom Definition Flash, Somatom Force, or Somatom Drive, Forchheim, Germany) and GE (Revolution CT, Discovery CT750 HD, or 64-slice LightSpeedVCT, GE Medical Systems, Milwaukee, WI, USA). Every scan started with non-contrast scanning from the thoracic inlet to the pubic symphysis to cover the entire aorta. Subsequently, contrast-enhanced CT was performed over the same area during the systemic arterial phase. The slice thickness was 1–5 mm for NCCT images and 1–1.5 mm for contrast-enhanced CTA images. The other scanning parameters were as follows: rotation time, 0.5 s; pitch, 1.2–1.375; matrix, 512 × 512; standard resolution algorithms; and tube voltage, 80–100 kV (Somatom Definition Flash or Somatom Force or Somatom Drive, Germany) and 120 kVp (Revolution CT or Discovery CT750 HD or 64-slice LightSpeedVCT, GE Healthcare, USA). The tube current was adjusted automatically using the noise index mode.

Ma Z., Jin L., Zhang L., Yang Y., Tang Y., Gao P., Sun Y, & Li M. (2023). Diagnosis of Acute Aortic Syndromes on Non-Contrast CT Images with Radiomics-Based Machine Learning. Biology, 12(3), 337.

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CT Imaging Parameters for Respiratory Scans

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All CT scans were performed using one of the following four scanners: GE Discovery CT750 HD (GE Healthcare, USA), 64-slice Light Speed VCT (GE Healthcare, USA); Somatom Definition Flash (Siemens Healthcare, Germany) and Somatom Sensation-16 (Siemens Healthcare, Germany). The scan parameters were as follows: tube current was 120–200 mA; tube voltage was 80–120 kV; scan layer thickness was 1–2 mm; reconstruction algorithm was STND/medium sharp; scan phase was deep inspiratory phase; and scan body position was supine.

Ma Z.J., Ma Z.X., Sun Y.L., Li D.C., Jin L., Gao P., Li C, & Li M. (2023). Prediction of subsolid pulmonary nodule growth rate using radiomics. BMC Medical Imaging, 23, 177.

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Contrast-Enhanced Abdominal CT Imaging

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All patients underwent contrast-enhanced abdominal CT using one of the two multi-detector row CT (MDCT) systems (GE Lightspeed Ultra 8; GE Healthcare, Hino, Japan or 64-slice LightSpeed VCT, GE Medical systems, Milwaukee, WI, USA). The acquisition parameters are as follows: 120 kV; 160 mAs; 0.5- or 0.4-second rotation time; detector collimation: 8×2.5 mm or 64×0.625 mm; field of view, 350 mm × 350 mm; matrix, 512×512. After routine non-enhanced CT, arterial and portal venous-phase contrast-enhanced CT was performed after 22 s and 60 s delay following intravenous administration of 90−100 mL of iodinated contrast material (Ultravist 370, Bayer Schering Pharma, Berlin, Germany) at a rate of 3.0 or 3.5 mL/s with a pump injector (Ulrich CT Plus 150, Ulrich Medical, Ulm, Germany). Contrast-enhanced CT was reconstructed with reconstruction thickness of 2.5 mm. Portal venous-phase CT images were retrieved from the picture archiving and communication system (PACS) (Carestream, Canada) for image feature extraction because of well differentiation of tumor tissue from adjacent normal bowel wall.

Huang Y., He L., Li Z., Chen X., Han C., Zhao K., Zhang Y., Qu J., Mao Y., Liang C, & Liu Z. (2022). Coupling radiomics analysis of CT image with diversification of tumor ecosystem: A new insight to overall survival in stage I−III colorectal cancer. Chinese Journal of Cancer Research, 34(1), 40-52.

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Abdominal and Pelvic CT Imaging Protocol

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All patients underwent abdominal and pelvic contrast enhanced arterial and portal venous CT using either of the two multi-detector row CT (MDCT) unit (GE Lightspeed Ultra 8, GE Healthcare, Hino, Japan or 64-slice LightSpeed VCT, GE Medical systems, Milwaukee, Wis). The utilized parameters are given below: 120 kV; 130 mAs; 0.6- or 0.4s rotation time; detector collimation: 8×0.625mm or 64×0.625mm; field of view, 350×350mm; matrix, 512×512. Following routine noncontrast-enhanced CT, arterial- and portal-venous phase contrast-enhanced CT were performed after 20 s and 60 s of delay after intravenous injection of 90-100 ml of iodinated contrast material (Ultravist 370, Bayer Schering Pharma, Berlin, Germany) at a rate of 3.0 to 3.5 ml/s with a pump injector (Ulrich CT Plus 150, Ulrich Medical, Ulm, Germany). All the arterial- and portal-venous phase CT was reconstructed with 2.5 mm of reconstruction thickness.

Liang C., Huang Y., He L., Chen X., Ma Z., Dong D., Tian J., Liang C, & Liu Z. (2016). The development and validation of a CT-based radiomics signature for the preoperative discrimination of stage I-II and stage III-IV colorectal cancer. Oncotarget, 7(21), 31401-31412.

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Contrast-Enhanced Chest CT Imaging Protocol

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All patients underwent contrast-enhanced (reconstruction thickness of 1.25 mm) chest CT with one of two multi-detector row CT (GE Light-speed Ultra 8; GE Healthcare, Hino, Japan; 64-slice LightSpeed VCT, GE Medical systems, Milwaukee, WI, USA). The CT images acquisition parameters were as follows: 120 kV; 160 mAs; 0.5- or 0.4-second rotation time; detector collimation: 8×2.5 mm or 64×0.625 mm; field of view, 350 mm × 350 mm; matrix, 512×512. The contrast-enhanced CT image was performed after a 25-second delay following intravenous administration of 85 mL of iodinated contrast material (Ultravist 370, Bayer Schering Pharma, Berlin, Germany) at a rate of 3 mL/s with a pump injector (Ulrich CT Plus 150, Ulrich Medical, Ulm, Germany) after routine non-enhanced CT. We then retrieved the images in DICOM format from the picture archiving and communication system (PACS; Carestream, Canada).

He L., Huang Y., Yan L., Zheng J., Liang C, & Liu Z. (2019). Radiomics-based predictive risk score: A scoring system for preoperatively predicting risk of lymph node metastasis in patients with resectable non-small cell lung cancer. Chinese Journal of Cancer Research, 31(4), 641-652.

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Multi-Detector CT Imaging of Metastatic Cancer

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All images of the in-house dataset were acquired in the Department of Radiology at our hospital. Contrast-enhanced CT were performed on every patient using one of the two multi-detector row CT (MDCT) systems (GE Lightspeed Ultra 8, GE Healthcare, Hino, Japan or 64-slice LightSpeed VCT, GE Medical systems, Milwaukee, Wis), with the following acquisition parameters: 120 kV; 160 mAs; 0.5- or 0.4-second rotation time; detector collimation: 8 × 2.5 mm or 64 × 0.625 mm; field of view, 350 × 350 mm; matrix, 512 × 512. After routine non-enhanced CT, contrast-enhanced CT was performed after 25 s delay following intravenous administration of 85 ml of iodinated contrast material (Ultravist 370, Bayer Schering Pharma, Berlin, Germany) at a rate of 2.5–3.0 ml/s with a pump injector (Ulrich CT Plus 150, Ulrich Medical, Ulm, Germany). CT image was reconstructed with standard kernel, with interval: 1 mm–2.5 mm. Retrieval of CT images: All of the CT images were retrieved from the picture archiving and communication system (PACS) (Carestream, Canada). The final clinical stage of disease was determined with histological staging and/or surgical evidence of advanced or metastatic disease. T-stage, N-stage, M-stage and final clinical staging were performed as per the AJCC guideline, 7^th edition29 .

Song J., Liu Z., Zhong W., Huang Y., Ma Z., Dong D., Liang C, & Tian J. (2016). Non-small cell lung cancer: quantitative phenotypic analysis of CT images as a potential marker of prognosis. Scientific Reports, 6, 38282.

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