Ileus CT: Difference between revisions
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==Overview== | ==Overview== | ||
An [[abdominal]] and [[pelvic]] [[CT scan]] is used to confirm the diagnosis of postoperative ileus only in cases when x ray is not diagnostic. [[Abdomen]] and [[pelvis]] [[CT scan]] (with [[intravenous]] [[contrast]] and oral water soluble contrast) can also distinguish early postoperative ileus from mechanical [[ | An [[abdomen|abdominal]] and [[pelvis|pelvic]] [[Computed tomography|CT scan]] is used to confirm the [[diagnosis]] of [[ileus|postoperative ileus]] only in cases when [[X-rays|x ray]] is not [[diagnosis|diagnostic]]. [[Abdomen]] and [[pelvis]] [[Computed tomography|CT scan]] (with [[intravenous]] [[Contrast medium|contrast]] and [[Contrast medium|oral water soluble contrast]]) can also distinguish early [[ileus|postoperative ileus]] from [[bowel obstruction|mechanical obstruction]]. In addition, [[Computed tomography|CT scan]] can also identify other [[Complication (medicine)|complications]] seen in post-[[surgery|operative]] period or [[ileus]] related [[Complication (medicine)|complications]], such as [[Gastrointestinal perforation|perforation]], strangulation and [[necrosis]]. Findings on [[Computed tomography|CT scan]] [[diagnosis|diagnostic]] of [[ileus|postoperative ileus]] include multiple air–fluid levels throughout the [[abdomen]], elevated [[diaphragm]], [[dilation]] of both [[Large intestine|large]] and [[small intestine]] with no evidence of [[bowel obstruction|mechanical obstruction]]. | ||
==CT== | ==CT== | ||
An [[abdominal]] and [[pelvic]] [[CT scan]] is used to confirm the [[diagnosis]] of postoperative ileus only in cases when [[X rays|x ray]] is not diagnostic. [[Abdomen]] and [[pelvis]] [[CT scan]] (with [[intravenous]] [[Contrast medium|contrast]] and oral water soluble contrast) can also distinguish early postoperative ileus from mechanical obstruction. In addition, CT scan can also identify other complications seen in post-operative period. Findings on CT scan diagnostic of postoperative ileus include:<ref name="pmid7726042">{{cite journal |vauthors=Frager DH, Baer JW, Rothpearl A, Bossart PA |title=Distinction between postoperative ileus and mechanical small-bowel obstruction: value of CT compared with clinical and other radiographic findings |journal=AJR Am J Roentgenol |volume=164 |issue=4 |pages=891–4 |year=1995 |pmid=7726042 |doi=10.2214/ajr.164.4.7726042 |url=}}</ref><ref name="pmid1352138">{{cite journal |vauthors=Tollesson PO, Cassuto J, Rimbäck G |title=Patterns of propulsive motility in the human colon after abdominal operations |journal=Eur J Surg |volume=158 |issue=4 |pages=233–6 |year=1992 |pmid=1352138 |doi= |url=}}</ref><ref name="pmid22940683">{{cite journal |vauthors=Hansmann J, Eichholz J |title=[Radiological diagnostics of the small bowel] |language=German |journal=Radiologe |volume=52 |issue=9 |pages=849–66 |year=2012 |pmid=22940683 |doi=10.1007/s00117-011-2278-8 |url=}}</ref> | An [[abdomen|abdominal]] and [[pelvis|pelvic]] [[Computed tomography|CT scan]] is used to confirm the [[diagnosis]] of [[ileus|postoperative ileus]] only in cases when [[X rays|x ray]] is not [[diagnosis|diagnostic]]. [[Abdomen]] and [[pelvis]] [[Computed tomography|CT scan]] (with [[intravenous]] [[Contrast medium|contrast]] and [[Contrast medium|oral water soluble contrast]]) can also distinguish early [[ileus|postoperative ileus]] from [[bowel obstruction|mechanical obstruction]]. In addition, [[Computed tomography|CT scan]] can also identify other [[Complication (medicine)|complications]] seen in post-[[surgery|operative]] period or [[ileus]] related [[Complication (medicine)|complications]], such as [[Gastrointestinal perforation|perforation]], strangulation and [[necrosis]]. Findings on [[Computed tomography|CT scan]] [[diagnosis|diagnostic]] of [[ileus|postoperative ileus]] include:<ref name="pmid7726042">{{cite journal |vauthors=Frager DH, Baer JW, Rothpearl A, Bossart PA |title=Distinction between postoperative ileus and mechanical small-bowel obstruction: value of CT compared with clinical and other radiographic findings |journal=AJR Am J Roentgenol |volume=164 |issue=4 |pages=891–4 |year=1995 |pmid=7726042 |doi=10.2214/ajr.164.4.7726042 |url=}}</ref><ref name="pmid1352138">{{cite journal |vauthors=Tollesson PO, Cassuto J, Rimbäck G |title=Patterns of propulsive motility in the human colon after abdominal operations |journal=Eur J Surg |volume=158 |issue=4 |pages=233–6 |year=1992 |pmid=1352138 |doi= |url=}}</ref><ref name="pmid22940683">{{cite journal |vauthors=Hansmann J, Eichholz J |title=[Radiological diagnostics of the small bowel] |language=German |journal=Radiologe |volume=52 |issue=9 |pages=849–66 |year=2012 |pmid=22940683 |doi=10.1007/s00117-011-2278-8 |url=}}</ref> | ||
*Multiple air–fluid levels throughout the abdomen | *Multiple air–fluid levels throughout the [[abdomen]] | ||
*Elevation of [[diaphragm]] | *Elevation of [[diaphragm]] | ||
*[[ | *[[Dilation]] of both [[Large intestine|large]] and [[small intestine]] | ||
*No transition zone between [[Small intestine|small]] and [[large intestine]] | *No transition zone (specially between [[Small intestine|small]] and [[large intestine]]) | ||
*No evidence of mechanical obstruction | *No evidence of [[bowel obstruction|mechanical obstruction]] | ||
[[File:Ileus edited.png|center|300px|frame|Abdomen and pelvic CT scan showing ileus.(Source: Case courtesy of Dr David Cuete, <a href="https://radiopaedia.org/">Radiopaedia.org</a>. From the case <a href="https://radiopaedia.org/cases/33988">rID: 33988</a>)]] | [[File:Ileus edited.png|center|300px|frame|Abdomen and pelvic CT scan showing ileus.(Source: Case courtesy of Dr David Cuete, <a href="https://radiopaedia.org/">Radiopaedia.org</a>. From the case <a href="https://radiopaedia.org/cases/33988">rID: 33988</a>)]] | ||
Revision as of 15:33, 12 October 2020
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Ileus Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Ileus CT On the Web |
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American Roentgen Ray Society Images of Ileus CT |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Akshun Kalia M.B.B.S.[2]
Overview
An abdominal and pelvic CT scan is used to confirm the diagnosis of postoperative ileus only in cases when x ray is not diagnostic. Abdomen and pelvis CT scan (with intravenous contrast and oral water soluble contrast) can also distinguish early postoperative ileus from mechanical obstruction. In addition, CT scan can also identify other complications seen in post-operative period or ileus related complications, such as perforation, strangulation and necrosis. Findings on CT scan diagnostic of postoperative ileus include multiple air–fluid levels throughout the abdomen, elevated diaphragm, dilation of both large and small intestine with no evidence of mechanical obstruction.
CT
An abdominal and pelvic CT scan is used to confirm the diagnosis of postoperative ileus only in cases when x ray is not diagnostic. Abdomen and pelvis CT scan (with intravenous contrast and oral water soluble contrast) can also distinguish early postoperative ileus from mechanical obstruction. In addition, CT scan can also identify other complications seen in post-operative period or ileus related complications, such as perforation, strangulation and necrosis. Findings on CT scan diagnostic of postoperative ileus include:[1][2][3]
- Multiple air–fluid levels throughout the abdomen
- Elevation of diaphragm
- Dilation of both large and small intestine
- No transition zone (specially between small and large intestine)
- No evidence of mechanical obstruction
References
- ↑ Frager DH, Baer JW, Rothpearl A, Bossart PA (1995). "Distinction between postoperative ileus and mechanical small-bowel obstruction: value of CT compared with clinical and other radiographic findings". AJR Am J Roentgenol. 164 (4): 891–4. doi:10.2214/ajr.164.4.7726042. PMID 7726042.
- ↑ Tollesson PO, Cassuto J, Rimbäck G (1992). "Patterns of propulsive motility in the human colon after abdominal operations". Eur J Surg. 158 (4): 233–6. PMID 1352138.
- ↑ Hansmann J, Eichholz J (2012). "[Radiological diagnostics of the small bowel]". Radiologe (in German). 52 (9): 849–66. doi:10.1007/s00117-011-2278-8. PMID 22940683.
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