Preoperative T staging using CT colonography with multiplanar reconstruction for very low rectal cancer
Abstract Background Preoperative T staging of lower rectal cancer is an important criterion for selecting intersphincteric resection (ISR) or abdominoperineal resection (APR) as well as selecting neoadjuvant therapy. The aim of this study was to evaluate the accuracy of preoperative T staging using...
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| Format: | Article |
| Language: | English |
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BMC
2017-11-01
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| Series: | BMC Cancer |
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| Online Access: | http://link.springer.com/article/10.1186/s12885-017-3756-9 |
| _version_ | 1818513998524448768 |
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| author | Dai Shida Gen Iinuma Akira Komono Hiroki Ochiai Shunsuke Tsukamoto Mototaka Miyake Yukihide Kanemitsu |
| author_facet | Dai Shida Gen Iinuma Akira Komono Hiroki Ochiai Shunsuke Tsukamoto Mototaka Miyake Yukihide Kanemitsu |
| author_sort | Dai Shida |
| collection | DOAJ |
| description | Abstract Background Preoperative T staging of lower rectal cancer is an important criterion for selecting intersphincteric resection (ISR) or abdominoperineal resection (APR) as well as selecting neoadjuvant therapy. The aim of this study was to evaluate the accuracy of preoperative T staging using CT colonography (CTC) with multiplanar reconstruction (MPR), in which with the newest workstation the images can be analyzed with a slice thickness of 0.5 mm. Methods Between 2011 and 2013, 45 consecutive patients with very low rectal adenocarcinoma underwent CTC with MPR. The accuracy of preoperative T staging using CTC with MPR was evaluated. The accuracy of preoperative T staging using MRI in the same patient population (34 of 45 patients) was also examined. Results Overall accuracy of T staging was 89% (41/45) for CTC with MPR and 71% (24/34) for MRI. CTC with MPR was particularly sensitive for pT2 tumors (82%; 14/17), whereas MRI tended to overstage pT2 tumors and its sensitivity for pT2 was 53% (8/15). Conclusions CTC with MPR, with an arbitrary selection, could be aligned to the tumor axis and better demonstrated tumor margins consecutively including the deepest section of the tumor. The accuracy of T2 and T3 staging using CTC with MPR seemed to surpass that of MRI, suggesting a potential role of CTC with MPR in preoperative T staging for very low rectal cancer. |
| first_indexed | 2024-12-11T00:09:15Z |
| format | Article |
| id | doaj.art-26c4fd3b4b1849eeb634320015a95300 |
| institution | Directory Open Access Journal |
| issn | 1471-2407 |
| language | English |
| last_indexed | 2024-12-11T00:09:15Z |
| publishDate | 2017-11-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Cancer |
| spelling | doaj.art-26c4fd3b4b1849eeb634320015a953002022-12-22T01:28:12ZengBMCBMC Cancer1471-24072017-11-011711710.1186/s12885-017-3756-9Preoperative T staging using CT colonography with multiplanar reconstruction for very low rectal cancerDai Shida0Gen Iinuma1Akira Komono2Hiroki Ochiai3Shunsuke Tsukamoto4Mototaka Miyake5Yukihide Kanemitsu6Colorectal Surgery Division, National Cancer Center HospitalDepartment of Diagnostic Radiology, National Cancer Center HospitalColorectal Surgery Division, National Cancer Center HospitalColorectal Surgery Division, National Cancer Center HospitalColorectal Surgery Division, National Cancer Center HospitalDepartment of Diagnostic Radiology, National Cancer Center HospitalColorectal Surgery Division, National Cancer Center HospitalAbstract Background Preoperative T staging of lower rectal cancer is an important criterion for selecting intersphincteric resection (ISR) or abdominoperineal resection (APR) as well as selecting neoadjuvant therapy. The aim of this study was to evaluate the accuracy of preoperative T staging using CT colonography (CTC) with multiplanar reconstruction (MPR), in which with the newest workstation the images can be analyzed with a slice thickness of 0.5 mm. Methods Between 2011 and 2013, 45 consecutive patients with very low rectal adenocarcinoma underwent CTC with MPR. The accuracy of preoperative T staging using CTC with MPR was evaluated. The accuracy of preoperative T staging using MRI in the same patient population (34 of 45 patients) was also examined. Results Overall accuracy of T staging was 89% (41/45) for CTC with MPR and 71% (24/34) for MRI. CTC with MPR was particularly sensitive for pT2 tumors (82%; 14/17), whereas MRI tended to overstage pT2 tumors and its sensitivity for pT2 was 53% (8/15). Conclusions CTC with MPR, with an arbitrary selection, could be aligned to the tumor axis and better demonstrated tumor margins consecutively including the deepest section of the tumor. The accuracy of T2 and T3 staging using CTC with MPR seemed to surpass that of MRI, suggesting a potential role of CTC with MPR in preoperative T staging for very low rectal cancer.http://link.springer.com/article/10.1186/s12885-017-3756-9CT colonographyMultiplanar reconstruction (MPR)Lower rectal cancerPreoperative T staging |
| spellingShingle | Dai Shida Gen Iinuma Akira Komono Hiroki Ochiai Shunsuke Tsukamoto Mototaka Miyake Yukihide Kanemitsu Preoperative T staging using CT colonography with multiplanar reconstruction for very low rectal cancer BMC Cancer CT colonography Multiplanar reconstruction (MPR) Lower rectal cancer Preoperative T staging |
| title | Preoperative T staging using CT colonography with multiplanar reconstruction for very low rectal cancer |
| title_full | Preoperative T staging using CT colonography with multiplanar reconstruction for very low rectal cancer |
| title_fullStr | Preoperative T staging using CT colonography with multiplanar reconstruction for very low rectal cancer |
| title_full_unstemmed | Preoperative T staging using CT colonography with multiplanar reconstruction for very low rectal cancer |
| title_short | Preoperative T staging using CT colonography with multiplanar reconstruction for very low rectal cancer |
| title_sort | preoperative t staging using ct colonography with multiplanar reconstruction for very low rectal cancer |
| topic | CT colonography Multiplanar reconstruction (MPR) Lower rectal cancer Preoperative T staging |
| url | http://link.springer.com/article/10.1186/s12885-017-3756-9 |
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