| Three-dimensional MDCT for preoperative local staging of gastric cancer using gas and water distention methods: a retrospective cohort study. | |
| | |
MedLine Citation:
|
PMID: 21098189 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
OBJECTIVE: The purpose of this article is to compare the T-staging accuracy and lesion detectability of MDCT with gas distention versus water distention according to the surgical and histopathologic findings, for the preoperative evaluation of gastric cancer. MATERIALS AND METHODS: For a 3-month period, 113 consecutive patients (72 men and 41 women; age range, 23-85 years; mean age, 58 years) with 116 surgically confirmed gastric cancers from a single institution were included in our study. All patients had undergone preoperative MDCT with either effervescent granules taken orally (n = 55) or after having drunk 1,000 mL of tap water (n = 58) to create gastric distention. In addition to transverse images, multiplanar reformation images and 3D surface shaded display images were also obtained with gas distention CT, and multiplanar reformation images were obtained with water distention CT. The CT images were retrospectively reviewed by two abdominal radiologists separately with regard to T staging and lesion detectability. The accuracy values were compared between the two methods using Fisher's exact test. RESULTS: The T-staging accuracy for gastric cancer did not differ significantly between gas distention and water distention CT scans, according to both radiologists (p > 0.05). Furthermore, the staging accuracy values for T1a cancers on gas distention CT scans for radiologists 1 and 2 were also comparable with those of water distention CT scans (91.1% vs 85% for radiologist 1 and 89.3% vs 85% for radiologist 2; p > 0.05). However, the tumor detection rate was significantly higher on gas distention CT scans using 2D and surface shaded display images for both radiologists (94.6% for radiologist 1 and 91.1% for radiologist 2), compared with the rates for water distention CT scans (78.3% and 73.3%) or gas distention CT scans using only 2D images (75.0% and 67.9%) (p < 0.05). CONCLUSION: MDCT using the gas distention technique showed performance comparable to that of the water distention technique for the T staging of preoperative gastric cancer with better lesion detectability. |
| | |
Authors:
|
Hee Sun Park; Jeong Min Lee; Se Hyung Kim; Jae Young Lee; Han-Kwang Yang; Joon Koo Han; Byung Ihn Choi |
Related Documents
:
|
21030479 - Style and content of ct and mr imaging lumbar spine reports: radiologist and clinician ... 10312239 - Cost-benefit evaluation of body computed tomography. 3628769 - Cine ct of the mediastinum in pediatric patients. 1909009 - The role of preoperative ct scans in staging external auditory meatus carcinoma: radiol... 3565459 - Computed tomography in advanced ovarian cancer: an evaluation of diagnostic accuracy. 19963589 - Automated recognition of the psoas major muscles on x-ray ct images. 18681019 - Superparamagnetism and other magnetic features in granular materials: a review on ideal... 16194869 - Quantitative high-resolution microradiographic imaging of amyloid deposits in a novel m... 21785299 - Preoperative evaluation of the cervical spondylotic myelopathy with flexion-extension m... |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: AJR. American journal of roentgenology Volume: 195 ISSN: 1546-3141 ISO Abbreviation: AJR Am J Roentgenol Publication Date: 2010 Dec |
Date Detail:
|
Created Date: 2010-11-24 Completed Date: 2011-01-11 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 7708173 Medline TA: AJR Am J Roentgenol Country: United States |
Other Details:
|
Languages: eng Pagination: 1316-23 Citation Subset: AIM; IM |
Affiliation:
|
Department of Radiology and Institute of Radiation Medicine, Seoul National University College of Medicine, 101 Daehang-no, Chongno-gu, Seoul 110-744, Korea. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adult Aged Aged, 80 and over Contrast Media / diagnostic use Female Flatulence / radiography Gases / diagnostic use Humans Imaging, Three-Dimensional* Iohexol / analogs & derivatives, diagnostic use Male Middle Aged Neoplasm Invasiveness Neoplasm Staging Retrospective Studies Stomach Neoplasms / pathology*, radiography, surgery Tomography, X-Ray Computed / methods* Water / diagnostic use |
| Chemical | |
Reg. No./Substance:
|
0/Contrast Media; 0/Gases; 66108-95-0/Iohexol; 73334-07-3/iopromide; 7732-18-5/Water |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Feasibility and radiation dose of high-pitch acquisition protocols in patients undergoing dual-sourc...
Next Document: MR imaging features of small solid pseudopapillary tumors: retrospective differentiation from other ...