cecum ascending colon transverse colon descending colon sigmoid

大腸的生理解剖 • • 盲腸(cecum) 升結腸(ascending colon) 橫結腸(transverse colon) 降結腸(descending colon) 乙狀結腸(sigmoid colon) 直腸(rectum) 肛管(anal canal)

盲腸(cecum)

Sigmoid colon variations in position

檢查類型 雙對比鋇劑灌腸(double contrast barium enema) • 單對比鋇劑灌腸(single contrast barium enema) • 腸套疊攝影法(intussusception) •

Double contrast檢查步驟 • • 透視照像：先取rectum AP和Lat，再取scolon、splenic flexure、hepatic flexure 及cecum處照像時應避免讓腸子打結。 最後取prone、supine和standing-view。

double standard

double standard

Single-contrast檢查步驟 • 前三點與doubole contrast步驟相同。 • 緩緩灌入鋇劑，使鋇劑充滿整個大腸。 • 透視照像：取rectum AP和Lat，再取scolon、splenic flexure、hepatic flexure 及cecum處。 • 最後取鋇劑充盈像(supine)和解後(postevacuation)二張像。

single standard

single standard

colitis Ulcerative colitis

diverticulitis

diverticulitis Diverticulum: 1. diverticulitis with spasm of S-colon; 2. multiple diverticulum in hepatic flexure; 3. perforated D-colon diverticulitis

Tumor

Colonic carcinomas annular colonic carcinomas

Colon polyps: 1. pedunculated; 2. Seesile; 3. en face view of a sessile polyp; 4. spot film of a sessile polyp

volvulus

volvulus

Intussusception (幼兒)

Intussusception (幼兒) Abdominal soft-tissue mass in RUQ Retrograde obstruction of barium enema over T-colon with coil spring" appearance

Intussusception (大人)