早期胰腺癌诊断的影像学对比

Early time cancer of the pancreas diagnoses the phantom study contrasts

胰腺癌因其位置隐秘,临床症状不典型,难以早期诊断,临床医生应重视胰腺癌的一些早期症状;上腹隐痛、持续腰背痛、不明原因的食欲减低等.利用彩超、CT、螺旋CT等无创检查,协助诊断或鉴别诊断.目前CT开展较普及,又为无创检查,因此认为CT是诊断胰腺癌较好的手段.螺旋CT则更优于一般CT,有报道：螺旋CT因尾影少、成像质量高、速度快、增强后动脉相显示更清楚,其判断胰腺癌血管侵犯的敏感性和特异性都达到100%.螺旋CT与彩超一样可作为诊断胰腺癌的一线检查手段.当影像学检查难以确定时,可行EUS检查,它是目前诊断胰腺癌敏感性、特异性最高的影像学方法之一,由于其不受肠道气体的干扰,而且探头离胰腺更近,显示也更清晰,对早期胰腺癌的诊断价值极高,可以准确地测定肿瘤大小并定位.但减少误诊及漏诊的关键,是临床医生不能忽视胰腺癌的一些非特异性表现,及时利用影像学检查作出诊断,达到早期治疗的目的.

the cancer of the pancreas because of its position secret, the clinical symptom is atypical, the early diagnosis, clinician should take the cancer of the pancreas with difficulty some incipient symptoms; On abdomen one＇s secret worries,continue the waist backache, the unclear reason appetite decrease and so on. Using the color ultra, CT, screw CT and so on not create the inspection, assists to diagnose or the distinction diagnosis. At present the CT development is popular, also for not creates the inspection, therefore thought CT is diagnoses the cancer of the pancreas good method. Then screw CT surpasses general CT, has reported that, Because screw CT the tail shade few, the image formation quality high, the speed quick, the enhancement rear drive venation demonstration is clearer,its judgment cancer of the pancreas blood vessel infringement sensitivity and the specificity all achieves 100 %. Screw CT and the color ultra may take the diagnosis cancer of the pancreas equally the first--line examination method. When the phantom study inspection determines with difficulty, the feasible EUS inspection,it is of at present diagnoses one of the cancer of the pancreas sensitivity, specificity highest phantom study methods, as a result of it not intestinal tract gas disturbance,moreover the probe head is nearer to the pancreatic gland, demonstrated is also clearer, is extremely high to the early cancer of the pancreas diagnosis value, may the accurate surveying decide the tumor size and locate. But the reduced error diagnostic and leaks the key which examines, is clini- cian cannot neglect the cancer of the pancreas some non--specificity performance, promptly makes the diagnosis using the phantom study inspection, achieves the early treatment the goal.