Coronary angiography with dual source computed tomography: initial experience.

Objective: To explore the scan technique and image quality of coronary angiography with dual source computed tomography (CT) without oral metoprolol preparation.

Methods: Plain and enhanced dual source CT coronary angiography without oral metoprolol preparation was prospectively performed in 600 patients. Calcium scoring with plain scan images as well as multi-planar reconstruction (MPR), maximum intensity projection (MIP), and volume rendering technique (VRT) reconstruction with enhanced scan images were performed in all cases.

[Comparison of coronary artery bypass graft imaging between 64-slice and 16-slice spiral CT].

Objective: To compare the coronary artery bypass graft (CABG) imaging between 16-slice spiral CT and 64-slice spiral CT.

Methods: Totally 27 patients with CABG received multi-slice spiral CT imaging and the results were retrospectively analyzed. Among them, 8 patients received 16-slice spiral CT scanning, 19 patients received 64-slice spiral CT scanning.

Using of multislice helical CT colonography in patients with malignant lesions of colon.

Objective: To investigate the techniques and clinical applications of multislice helical computed tomography (CT) colonography in colonic lesions.

Methods: Fifty-nine patients with malignant lesions of colon underwent volume scanning using multislice helical CT. Four types of reconstruction including CT virtual colonoscopy (CTVC), shaded surface display (SSD), Raysum, and multiple planar reconstruction (MPR) were used for image post-processing.

Non-invasive imaging of coronary artery with 16-slice spiral computed tomography.

Objective: To evaluate the value of 16-slice spiral CT in the demonstration of coronary artery and in the diagnose of coronary artery stenosis.

Methods: Plain and enhanced CT scans were performed with a 16-slice CT scanner (Sensation 16, Siemens, Germany) in 230 patients with suspected coronary heart disease (CHD). Parameters of the plain scan were: 120 kV, 133 mA, slice collimation 16 mm x 1.

[Techniques and clinical applications of 16 multislice helical CT in colonic diseases].

Objective: To evaluate the techniques and clinical applications of 16 multislice helical CT in colonic lesions.

Methods: Eighty-one patients including 54 colorectal carcinomas, 5 adenomas, 1 non-Hodgkin's lymphoma, 6 inflammatory bowel diseases, and other 15 cases underwent volume scanning using 16 multislice helical CT. Four types of reconstruction included multiple planar reconstruction, shaded surface display, raysum, and CT virtual colonoscopy.

[Coronary angiography with sixteen-slice spiral CT: an initial study].

Objective: To evaluate the scanning technique and primary clinical value of sixteen-slice spiral CT coronary angiography.

Methods: Plain and enhanced sixteen-slice spiral CT imaging was performed in 69 patients, including 64 cases of suspected coronary heart disease and 5 cases of coronary stent. Calcium scoring with plain scan images and MPR, MIP and VRT reconstruction with enhanced scan images were made in all cases, among which 10 underwent conventional coronary angiography.