本文選題：寬體探測(cè)器單源雙能CT + 胰腺　； 參考：《臨床放射學(xué)雜志》2017年07期

【摘要】：目的探討寬體探測(cè)器單源雙能CT胰腺灌注成像的可行性及正常胰腺組織的灌注特點(diǎn)。方法搜集27例行上腹部CT增強(qiáng)及胰腺CT灌注掃描且胰腺無(wú)病變者,按性別和年齡進(jìn)行分組,采用全器官一次軸位掃描模式。測(cè)量胰腺頭部、體部、尾部的血流量(BF)、血容量(BV)、平均通過(guò)時(shí)間(MTT)、達(dá)峰時(shí)間(TP)和表面通透性(PS)。由兩名放射科醫(yī)師獨(dú)立完成上述測(cè)量。記錄并計(jì)算輻射劑量。結(jié)果兩名觀察者測(cè)得所有灌注參數(shù)一致性良好(ICC均0.75)。正常胰腺頭部、體部和尾部的不同參數(shù)之間差異均無(wú)統(tǒng)計(jì)學(xué)意義(P0.05)。不同年齡組(≥60歲、60歲)及不同性別組胰腺組織血流灌注參數(shù)之間差異均無(wú)統(tǒng)計(jì)學(xué)意義(P0.05)。灌注期有效輻射劑量為14.47 mSv。結(jié)論寬體探測(cè)器單源雙能CT可以用單次軸掃完成單器官容積成像,實(shí)現(xiàn)胰腺的低輻射劑量連續(xù)灌注成像。正常胰腺組織的血流灌注參數(shù)與性別、年齡及胰腺的不同部位無(wú)關(guān)。
[Abstract]:Objective to investigate the feasibility of single source and dual energy CT perfusion imaging with wide body detector and the perfusion characteristics of normal pancreatic tissue. Methods Twenty-seven patients with upper abdominal CT enhancement and pancreatic CT perfusion scan without pancreatic lesions were divided into groups according to sex and age, and the whole organ axial scanning mode was used. The blood flow of the head, body and tail of the pancreas was measured, and the blood volume was measured. The mean transit time (MTT), peak time (TPT) and surface permeability were measured. These measurements were performed independently by two radiologists. The radiation dose is recorded and calculated. Results all the perfusion parameters measured by two observers were in good agreement with each other (0.75). There was no significant difference in different parameters of the head, body and tail of the normal pancreas (P 0.05). There was no significant difference in blood perfusion parameters between different age groups (鈮，

本文編號(hào)：1843566