Objective To explore the application effect of real-time vascular threshold detection and low-dose contrast agent peak tracking method via 64-slice spiral computed tomography angiography(CTA).Methods A total of 96 patients who underwent 64-slice spiral CT head CTA examination were selected,and all patients were divided into real-time vascular threshold detection group(n=48)and low-dose contrast agent peak tracking group(n=48)according to different scanning methods.The real-time vascular threshold detection group performed the real-time vascular threshold detection method,and the low-dose contrast agent peak tracking group used the low-dose contrast agent peak tracking method,the fulfillment diagnostic rate and radiation dose index between the two groups were compared.Results The fulfillment diagnostic rate of the low-dose contrast agent peak tracking group was significantly higher than that of the real-time vascular threshold detection group(P＜0.05).The volume CT dose index(CTDIvol),dose length product(DLP),and total radiation dose of the low-dose contrast agent peak tracking group were significantly higher than those of the real-time vascular threshold detection group(P＜0.05).Conclusion The low-dose contrast agent peak tracking method can be used in the clinic after substantially improving the image quality and diagnostic rate,and the real-time vascular threshold detection can save the contrast agent consumption,reduce the patient's radiation dose,save time,and benefit the patient's prognosis.

Objective To explore the application effect of real-time vascular threshold detection and low-dose contrast agent peak tracking method via 64-slice spiral computed tomography angiography(CTA).Methods A total of 96 patients who underwent 64-slice spiral CT head CTA examination were selected,and all patients were divided into real-time vascular threshold detection group(n=48)and low-dose contrast agent peak tracking group(n=48)according to different scanning methods.The real-time vascular threshold detection group performed the real-time vascular threshold detection method,and the low-dose contrast agent peak tracking group used the low-dose contrast agent peak tracking method,the fulfillment diagnostic rate and radiation dose index between the two groups were compared.Results The fulfillment diagnostic rate of the low-dose contrast agent peak tracking group was significantly higher than that of the real-time vascular threshold detection group(P＜0.05).The volume CT dose index(CTDIvol),dose length product(DLP),and total radiation dose of the low-dose contrast agent peak tracking group were significantly higher than those of the real-time vascular threshold detection group(P＜0.05).Conclusion The low-dose contrast agent peak tracking method can be used in the clinic after substantially improving the image quality and diagnostic rate,and the real-time vascular threshold detection can save the contrast agent consumption,reduce the patient's radiation dose,save time,and benefit the patient's prognosis.

OBJECTIVE: To explore the feasibility of radical resection for cancer patients complicated with coronavirus disease 2019 (COVID-19). METHODS: The management and clinical outcome of a sigmoid cancer patient with COVID-19 were analyzed. RESULTS: The inflammation indicators and fever of this patient were effectively controlled and the lung lesions remained stable after active anti-viral treatment, then the radical colorectomy was performed after the viral negative conversion for twice. CONCLUSIONS The case indicates that radical resection can be performed in SARS-CoV-2 patients with twice-negative SARS-CoV-2 nucleic acid testing results.
Betacoronavirus ; isolation & purification ; Colonic Neoplasms ; complications ; surgery ; Coronavirus Infections ; complications ; therapy ; Disease Management ; Humans ; Pandemics ; Pneumonia, Viral ; complications ; therapy ; Treatment Outcome

OBJECTIVE: To explore the feasibility of surgical treatment for cancer patients complicated with corona virus disease 2019 (COVID-19). METHODS: The management and clinical outcome of a sigmoid cancer patient with COVID-19 were analyzed. RESULTS: The inflammation indicators and fever of this patient were effectively controlled and the lung lesions remained stable after active anti-viral treatment, then the radical colorectomy was performed after the viral negative conversion for twice. CONCLUSIONS The case indicates that it may feasible to undergo radical tumor surgery for cancer patients with COVID-19 after the virus nucleic acid testing turns negative and more studies are needed to confirm this conclusion.
Antiviral Agents ; therapeutic use ; Betacoronavirus ; Clinical Laboratory Techniques ; Colonic Neoplasms ; complications ; surgery ; virology ; Coronavirus Infections ; complications ; diagnosis ; drug therapy ; Fever ; Humans ; Nucleic Acid Amplification Techniques ; Pandemics ; Pneumonia, Viral ; complications ; diagnosis ; drug therapy