Gastric tumors: radiologic-pathologic correlation and accuracy of T staging with dynamic CT.

Minami, Manabu; Kawauchi, Nobuo; Itai, Yuji; Niki, Toshiyuki; Sasaki, Yu

doi:10.1148/radiology.185.1.1523303

Cited by 154 publications

(80 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Furthermore, the limited spatial resolution often misses tiny metastases [1] . Cho JS suggested that dynamic CT be used to improve the diagnostic accuracy in the preoperative staging of gastric cancer [9] .…”

Section: Resultsmentioning

confidence: 99%

“…Cho JS suggested that dynamic CT be used to improve the diagnostic accuracy in the preoperative staging of gastric cancer [9] . As endoscopic US is invasive and its performance requires special skills [1] , it is difficult to perform on patients with advanced gastric cancer. For MRI, however, no special preparation is required.…”

Section: Resultsmentioning

confidence: 99%

“…It is also helpful for patients who have to undergo radiotherapy [8] . There have been many reports about preoperative staging in advanced gastric cancer with CT [1,7,9] and endoscopic US [2,3] . The staging accuracy by CT and US is 42%-69% and 81%-92%, respectively.…”

Section: Discussionmentioning

confidence: 99%

“…Location was classified according to four areas: Cardia fundus, corpus, antrum and entire stomach. A gastric wall > 1 cm thick was considered abnormal [1,5,6] . According to the criteria [5] proposed by Matsushita M, the degree of serosal invasion observed by MR imaging was classified as MRT-1 (no abnormal findings), MRT-2 (presence of a clear hypointense band or clear fat plane surrounding the lesion) (Figures 1 and 2), MRT-3 (presence of irregular margin or fat signal blurring around the lesion) ( Figures 3 and 4), or MRT-4 (presence of contiguous extention of lesion signal to adjacent organs or definite involvement of adjacent structures), ( Figure 5).…”

Section: Image Analysismentioning

confidence: 99%

“…Nevertheless, computed tomography and ultrasonography are used for diagnosis in patients with known gastric cancer as well as in complementary studies for the evaluation of extraserosal invasion, metastasis to lymph nodes and other organs [1][2][3] . However, there have only been a few studies that have utilized magnetic resonance imaging (MRI) for gastric cancer.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Evaluation of preoperative staging in advanced gastric cancer with MRI

Tang¹,

Guo²,

Xin³

2011

WJG

View full text Add to dashboard Cite

AIM:To evaluate the application o� magnetic resonance imaging (MRI) to the preoperative staging o� advanced gastric cancer. METHODS:An MRI (SE sequence) was preoperatively per�ormed on 34 patients with advanced gastric cancer. The tumors were located at the cardia �undus in 11 patients, the corpus in 14, the antrum in ten and throughout the entire stomach in two. The images were analyzed and staged on the basis o� the criteria proposed by Matsushita M. The results were compared with the corresponding histopathologic findings to analyze the rate of diagnostic accordance. RESULTS:The diagnostic rate accuracy by MRI was 77.8% (seven out o� nince) �or T2 tumors; 77.3% (17 out o� 22) �or T3 tumors and 100% (three out o� three) �or T4 tumors, with the overall accuracy equaling 79.4%. When grades T3 and T4 tumors were considered as a single group to determine the presence or absence o� extraserosal invasion using MRI technology, the diagnostic accuracy was 88.3%. Statistically, MRI staging showed a signi�icant correlation with the corresponding histopathologic staging using the Spearman correlation test (r s′ = 0.743, P < 0.01). When the concordance between MRI and histopathologic staging results were studied according to tumor location, the staging accuracy was highest (90.9%) in tumors located in gastric cardia �undus.CONCLUSION: MR imaging is moderately valuable when staging advanced gastric cancer, especially �or tumors located in gastric cardia �undus.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Image Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Evaluation of preoperative staging in advanced gastric cancer with MRI

Tang¹,

Guo²,

Xin³

2011

WJG

View full text Add to dashboard Cite

show abstract

Imaging diagnosis for staging of gastric cancer

Kuntz

Herfarth

1999

Semin. Surg. Oncol.

View full text Add to dashboard Cite

A more differentiated therapy regimen concept for gastric cancer requires more precise pre‐operative diagnostic imaging. There are several methods for pre‐operative locoregional tumor staging in gastric cancer: percutaneous abdominal ultrasound with hydrotechnique (HUS), endoluminal ultrasound in the stomach (EUS), computed tomography (CT), and magnetic resonance imaging (MRI). The advantages and indications for each method are described and an overview of the medical literature is given. The results in the literature are compared to our own findings, which were obtained in prospective studies comparing the four different imaging methods. On the basis of our experience and the literature, we conclude that the indication for the different diagnostic imaging methods primarily depends on the type of therapy concept followed in the respective surgical department. Endoscopy with biopsy remains the primary diagnostic procedure. Endosonography (EUS) is another diagnostic procedure, which can be performed simultaneously with endoscopy. Only special questions or reasons warrant the use of other imaging methods. Semin. Surg. Oncol. 17:96–102, 1999. © 1999 Wiley‐Liss, Inc.

show abstract