Sensation cardiac 64

Manufactured by GE Healthcare

The Sensation Cardiac 64 is a computed tomography (CT) imaging system designed for cardiac applications. It features a 64-slice detector configuration that enables rapid acquisition of high-resolution images of the heart and surrounding vasculature. The system is capable of performing non-invasive evaluation of the coronary arteries and cardiac function.

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2 protocols using sensation cardiac 64

Multimodal Imaging of Liver Steatosis

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Non-contrast chest CTs were obtained in the supine position in a single breath-hold on several CT platforms (Lightspeed Ultra, Lightspeed VCT, Discovery CT750HD, and Revolution, GE Healthcare; Somatom Definition Flash, Somatom Definition AS, Sensation Cardiac 64, and Force, Siemens Healthineers) using clinical acquisition protocols: 100 or 120 kVp, 106–663 mA, 0.600 mm (Siemens), 0.625 or 1.25 mm (GE) collimation, slice thickness 1.00–3.00 mm, and reconstruction kernels of B40f for Somatom Definition AS and Sensation Cardiac 64, I31f for Somatom Definition Flash, and standard for all GE scanners. Liver attenuation on CT was measured in HU on mediastinal window settings (width 350 HU; level 25 HU).
Multichannel MRI systems were used for all patients (1.5T: Avanto, Aera, and Sonata, Siemens Healthineers; and Signa HD and Optima 450w, GE Medical Systems or 3T: Skyra and Biograph mMR, Siemens Healthineers; and Discovery 750, GE Medical Systems) [27 ]. The liver MRI sequences and acquisition parameters followed clinical protocols. T1WI in- and out-of-phase imaging was performed in all cases and used to calculate the fat fraction percentage (FF).

Jirapatnakul A., Reeves A.P., Lewis S., Chen X., Ma T., Yip R., Chin X., Liu S., Perumalswami P.V., Yankelevitz D.F., Crane M., Branch A.D, & Henschke C.I. (2019). Automated measurement of liver attenuation to identify moderate-to-severe hepatic steatosis from chest CT scans. European journal of radiology, 122, 108723.

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Cardiac CCTA Imaging Protocol

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CCTA was performed on a 64-row detector scanner (Siemens Sensation Cardiac 64 or GE Lightspeed VCT 64). Images were acquired with electrocardiogram gating and bolus tracking. On average, 65–85 mL iodixanol contrast (Visipaque 320, GE Healthcare, Shanghai, China) was administered using a power injector at an infusion rate of 6 mL/s. Detector collimation was 64 × 0.625 mm, gantry rotation speed 330 ms/rotation, pitch 1.375, and tube voltage 120 kVp with a variable tube current set at a quality reference of 600 mAs. The adaptive iterative reconstruction was implemented and set at 40%. The reconstructions were performed with a kernel generating 0.625-mm-thick slices with an average field of view of 300–360 mm centered at the heart. The images were analyzed using a Vitrea workstation (Cannon Vital Images, MN, USA).

Cao J.J., Shen L., Nguyen J., Rapelje K., Porter C., Shlofmitz E., Jeremias A., Cohen D.J., Ali Z.A, & Shlofmitz R. (2023). Accuracy and limitation of plaque detection by coronary CTA: a section-to-section comparison with optical coherence tomography. Scientific Reports, 13, 11845.

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