Thoracic aortic computed tomography angiography in swine: establishment of a baseline for endovascular evaluation of the ascending aorta.

OBJECTIVES: Our goal was to establish a baseline of computed tomography (CT) angiographic data for the porcine ascending thoracic aorta for endovascular evaluation of animal experiments and device development. METHODS: Thoracic aortic CT angiography was conducted on 49 pigs with an average body weight of 60-65 kg. The CT angiographic scans were done on an imaging reconstruction workstation to obtain the specific aortic geometric data, including the diameters of the planes, the heights among the planes and the clock positions of target arteries. RESULTS: Fourteen important planes were defined in the study for endograft customizing reference. The diameters of the planes were measured, and the heights among the planes were recorded. For endograft fenestrations, the right coronary artery ostium clock position was 100.11 ± 7.29°, and the brachiocephalic trunk ostium clock position was 74.72 ± 6.45°. The best projection angle of the tangent position of the left coronary artery was the right anterior oblique 17 ± 7° position. A pig with a rare congenital giant dilated aorta was found among the candidate experimental animals. CONCLUSIONS: For experimental porcine models, CT angiography has proved to be a suitable imaging technique. The established baseline angiography of the swine can provide reference values for future animal experiments and device development.

Observation on the application effect of power port in cancer patients receiving contrast-enhanced CT scans / 中国实用护理杂志

Objective To investigate the application effect of Power port in contrast-enhanced CT scans. Methods Totally 220 cancer patients who needed contrast- enhanced CT scans after chemotherapy were selected in Changhai hospital From September 2017 to September 2018, including 110 cases in the observation group and 110 cases in the control group with convenient sampling method. The observation group was injected contrast medium through Power port for CT scans. Contrast medium was injected into the control group by 22G of Peripheral venous access devices (Introcan?). The incidence of contrast medium exosmosis, nursing time and patient satisfaction were compared between the two groups. Results The incidence of extravasation of contrast medium in the observation group was 0, lower than that in the control group 9.1% (10/110), the difference was significant(χ2=10.476,P=0.015); the nursing time in the observation group was (2.60 ±0.15) minutes per time, which was lower than that in the control group (5.60 ± 5.29) minutes per time), the difference was significant (t=5.934,P =0.000); the patient satisfaction in the observation group was higher than that in the control group, the difference was statistically significant (Z=-12.695, P=0.000). Conclusions Contrast medium injection through Power port for CT scans can reduce the incidence of contrast medium exosmosis, reduce nursing hours and improve patient satisfaction.

Observation on the application effect of power port in cancer patients receiving contrast-enhanced CT scans / 中国实用护理杂志

Objective@#To investigate the application effect of Power port in contrast-enhanced CT scans.@*Methods@#Totally 220 cancer patients who needed contrast-enhanced CT scans after chemotherapy were selected in Changhai hospital From September 2017 to September 2018, including 110 cases in the observation group and 110 cases in the control group with convenient sampling method.The observation group was injected contrast medium through Power port for CT scans. Contrast medium was injected into the control group by 22G of Peripheral venous access devices (Introcan®). The incidence of contrast medium exosmosis, nursing time and patient satisfaction were compared between the two groups.@*Results@#The incidence of extravasation of contrast medium in the observation group was 0, lower than that in the control group 9.1% (10/110), the difference was significant(χ2=10.476,P=0.015); the nursing time in the observation group was (2.60 ±0.15) minutes per time, which was lower than that in the control group (5.60 ± 5.29) minutes per time), the difference was significant (t=5.934, P=0.000); the patient satisfaction in the observation group was higher than that in the control group, the difference was statistically significant (Z=-12.695, P=0.000).@*Conclusions@#Contrast medium injection through Power port for CT scans can reduce the incidence of contrast medium exosmosis, reduce nursing hours and improve patient satisfaction.