Editing CT scan (section)

=== Abdomen and pelvis ===
[[File:CT of a normal abdomen and pelvis, thumbnail.png|link=Commons:Scrollable computed tomography images of a normal abdomen and pelvis|thumb|CT scan of a normal abdomen and pelvis, in [[sagittal plane]], [[Coronal plane|coronal]] and [[Axial plane|axial]] planes, respectively. {{noprint|[[Commons:Scrollable computed tomography images of a normal abdomen and pelvis|<small>Click here to scroll through the image stacks.</small>]]}}|160x160px]]
{{Main|Computed tomography of the abdomen and pelvis}}
CT is an accurate technique for diagnosis of [[Human abdomen|abdominal]] diseases like [[Crohn's disease]],<ref>{{Cite journal |last1=Furukawa |first1=Akira |last2=Saotome |first2=Takao |last3=Yamasaki |first3=Michio |last4=Maeda |first4=Kiyosumi |last5=Nitta |first5=Norihisa |last6=Takahashi |first6=Masashi |last7=Tsujikawa |first7=Tomoyuki |last8=Fujiyama |first8=Yoshihide |last9=Murata |first9=Kiyoshi |last10=Sakamoto |first10=Tsutomu |date=2004-05-01 |title=Cross-sectional Imaging in Crohn Disease |journal=RadioGraphics |volume=24 |issue=3 |pages=689–702 |doi=10.1148/rg.243035120 |issn=0271-5333 |pmid=15143222 |doi-access=free}}</ref> GIT bleeding, and diagnosis and staging of cancer, as well as follow-up after cancer treatment to assess response.<ref>{{Cite book |url=https://books.google.com/books?id=r3uK7sSZUmcC |title=CT of the Acute Abdomen |publisher=Springer Berlin Heidelberg |year=2011 |isbn=978-3-540-89232-8 |pages=37}}</ref> It is commonly used to investigate [[acute abdominal pain]].<ref>{{Cite book |last1=Jay P Heiken |chapter-url=https://books.google.com/books?id=CSy5BQAAQBAJ&pg=PA3 |title=Diseases of the Abdomen and Pelvis |last2=Douglas S Katz |publisher=Springer Milan |year=2014 |isbn=978-88-470-5659-6 |editor-last=J. Hodler |page=3 |chapter=Emergency Radiology of the Abdomen and Pelvis: Imaging of the Nontraumatic and Traumatic Acute Abdomen |editor-last2=R. A. Kubik-Huch |editor-last3=G. K. von Schulthess |editor-last4=Ch. L. Zollikofer}}</ref>

Non-contrast-enhanced CT scans are the gold standard for diagnosing [[kidney stone disease]].<ref>{{Cite book |last1=Skolarikos |first1=A |url=https://uroweb.org/guidelines/urolithiasis |title=EAU Guidelines on Urolithiasis |last2=Neisius |first2=A |last3=Petřík |first3=A |last4=Somani |first4=B |last5=Thomas |first5=K |last6=Gambaro |first6=G |date=March 2022 |publisher=[[European Association of Urology]] |isbn=978-94-92671-16-5 |location=Amsterdam}}</ref> They allow clinicians to estimate the size, volume, and density of stones, helping to guide further treatment; with size being especially important in predicting the time to spontaneous passage of a stone.<ref>{{Cite journal |last1=Miller |first1=Oren F. |last2=Kane |first2=Christopher J. |date=September 1999 |title=Time to stone passage for observed ureteral calculi: a guide for patient education |journal=Journal of Urology |volume=162 |issue=3 Part 1 |pages=688–691 |doi=10.1097/00005392-199909010-00014 |pmid=10458343}}</ref>