Rapid kV Switching Dual-Energy CT Imaging
Fig. 4.1 Schematics of rapid kV switching dual-energy CT (DECT) imaging (a) and single-energy CT (SECT) imaging (b) on a GE CT750 HD scanner. In a DECT scan, projections are…
Technical Aspects of Dual Energy CT with Dual Source CT Systems
Fig. 2.1 DSCT with two independent measurement systems. (a) First generation. The system angle between both measurement systems is 90°. (b) Second generation. To increase the SFOV of detector B,…
Myocardial Perfusion by Dual Energy CT
Fig. 12.1 DECT with Dual source (Siemens). Two x-ray tube detectors are placed in the same rotation gantry at an angular compensation of 90–94° (first and second generation) with one…
Dual Energy-Spectral CT in Neurovascular Imaging
Fig. 6.1 Dual energy CT with calculated MCE sagittal images of the cervical spine in a patient with prior C2-C5 anterior cervical fusion, corpectomy and cage placement. Hardware associated streak…
Upper and Lower Limb Imaging
Fig. 9.1 Normal MDCT vascular mapping of the peripheral arteries. Coronal MIP images were obtained in a 39 year old male with a thigh mass which demonstrate patent and normal…
Myocardial CT Viability
Fig. 13.1 Images from a SPECT-MIBI scan of a 64 year old male with a high grade RCA stenosis. (a) Demonstrating no defect and rest (b) and a septal defect…
Technical Advancements in Dual Energy
Features SOMATOM definition DS SOMATOM definition flash SOMATOM force Discovery 750HD Revolution Brilliance iCT SP 128 Brilliance iCT 256 Aquilion one Vendor Siemens Siemens Siemens GE GE Philips Philips Toshiba…
Abdominal Imaging Dual-Energy CT Applications
Parameter ssDECT dsDECT Single-energy CT Tube voltage (kVp) 140/80 140/80 (<90 kg); 140/100 (>90 kg) 120 (default); 100 (arterial phase) Tube current (mA) 600 mA (fixed) Automated current modulation (CARE…
Dual-Energy CT in Thoracic Imaging
Thoracic applications of dual-energy CT Pulmonary perfusion imaging Pulmonary ventilation imaging Oncologic chest imaging Lung nodule characterization Lung cancer staging Assessment of therapy response Optimization of image contrast Monoenergetic extrapolation…
Dual Energy CT Imaging for the Assessment of Coronary Artery Stenosis
Fig. 11.1 Contrast reduction using dual energy CT coronary angiography. Single energy CTCA (SE-CTCA) performed with 75 ml of iodinated contrast (above): Axial image (a) at the ascending aorta showing…
