Efficacy of hydrogastric sonography and spiral computed tomography in staging of gastric carcinoma—A comparative study

Venkataraman, Iswariya; Rao, Himagirish K; Singh, Prabha; Elangovan, S.; Kate, Vikram

doi:10.1002/jcu.20734

Cited by 7 publications

(8 citation statements)

References 16 publications

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“…This study combined the findings of Zheng [ 11 ] and Chen et al [ 12 ]. Enhanced MDCT scanning and oral echo agent ultrasound imaging were combined for the T staging of gastric cancer, and the accuracy reached 85.00%, which was consistent with that from Venkataraman [ 28 ]. The combination of enhanced CT scanning and ultrasound imaging has a higher accuracy in the evaluation of preoperative T staging of gastric cancer than any method used alone ( P < 0.05).…”

Section: Discussionsupporting

confidence: 77%

Prediction of T stage in gastric carcinoma by enhanced CT and oral contrast-enhanced ultrasonography

Wang

Zhao

et al. 2015

World J Surg Onc

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BackgroundThe aim of this study is to explore the values of enhanced CT and oral contrast-enhanced ultrasonography on preoperative T stage in gastric carcinoma.MethodsForty patients with gastric carcinoma, including 27 males and 13 females, were confirmed by endoscopy, operation, and pathology. The median age of these patients was 49 years old (25 to 73 years). There were 19 cases of well-differentiated adenocarcinoma, 13 cases of poorly differentiated adenocarcinoma, 5 cases of signet ring cell carcinoma, and 4 cases of mucinous adenocarcinoma by pathology. All these patients were examined by both enhanced CT and ultrasound examination simultaneously 1 week before surgery. T staging in all these gastric carcinomas was carried out by enhanced CT or oral contrast-enhanced ultrasonography, respectively, or by both of them. The statistical difference between T stage by imaging and pathological T stage was analyzed.ResultsIn this study, there were 5 cases with T1 stage, 9 cases with T2 stage, 20 cases with T3 stage, and 6 cases with T4 stage by pathology; 5 cases with T1 stage, 7 cases with T2 stage, 22 cases with T3 stage, and 6 cases with T4 stage by enhanced CT imaging with an accuracy of 75.00%; 6 cases with T1 stage, 7 cases with T2 stage, 22 cases with T3 stage, and 5 cases with T4 stage by ultrasonography examination, with an accuracy of 77.50%; and 4 cases with T1 stage, 10 cases with T2 stage, 19 cases with T3 stage, and 7 cases with T4 stage by both enhanced CT imaging and ultrasonography examination, with an accuracy of 85.00%. The accuracy of T staging in gastric carcinoma by both enhanced CT and ultrasound was higher than that either by enhanced CT or by ultrasound, respectively (P < 0.05). The anastomosis degree of the gastric carcinoma between enhanced CT and ultrasonography was κ = 0.404.ConclusionsCombination diagnosis of enhanced CT and oral contrast-enhanced ultrasonography is helpful to improve the accuracy of T staging of gastric carcinoma before operations.

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Section: Discussionsupporting

confidence: 77%

Prediction of T stage in gastric carcinoma by enhanced CT and oral contrast-enhanced ultrasonography

Wang

Zhao

et al. 2015

World J Surg Onc

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“…7 Ultrasonography (USG) and Multidetector Computed Tomography (CT) with Multiplanar Reformation (MPR) gives both physiological as well as anatomical description of the site and extension of lesion within the lumen, as well as beyond the lumen. 4,5 The other modalities which are used are Magnetic Resonance Imaging (MRI) and Positron Emission Tomography (PET). These examinations are effective to varying degrees and are limited in assessing the site and extension of disease.…”

Section: Discussionmentioning

confidence: 99%

“…It has recently been shown that dedicated transabdominal ultrasound performed after ingestion of boiled cooled water and of a hypotonic agent along with the use of broad band transducers provides detailed and unique evaluation of the stomach. 4 Multidetector CT involves thin-section collimation of the stomach allowing high-quality MPR (Multiplanar Reformations) images which dramatically improves the visualization of fine anatomic details of the gastric wall, adjacent structural involvement, lymph node status and metastatic lesions. 9 In present study, CT showed 87% efficacy, whereas USG showed 80% efficacy with P value < 0.01 which is significant, which shows CT is better modality for diagnosing gastric carcinoma.…”

Section: Discussionmentioning

confidence: 99%

“…This is seen in consensus with studies done by Venkat et al and San Sui. 4,9 The performance of ultrasonography is found to be better in T1 and T2 staging and decreases in T3 and T4, due to the lesions being far from the ultrasound probe, resulting in a lower spatial resolution. While T3 to T4 gastric T staging is the advantage of enhanced MDCT scanning.…”

Section: Discussionmentioning

confidence: 99%

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Comparative Study of Transabdominal Ultrasonography and Multidetector Row Computed Tomography in Preoperative Staging of Gastric Carcinoma

M.P¹,

Narayanaswamy²,

H.V³

2018

IJCMSR

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Gastric cancer is one of the most common malignant tumours in the digestive tract and is the second most common cause of cancer-related death worldwide. The incidence in India is 7-8 cases per 100,000 persons per year and it is the most common cancer in males in Chennai. The aim of the present study was to compare Ultrasonography (USG) and MDCT findings in the detection and staging of gastric carcinoma by correlating with histopathology. Material and methods: Data were collected from 30 cases of clinically suspected/proven cases of gastric carcinoma that were referred to the Department of Radiodiagnosis for Ultrasonography and MDCT. Ultrasound examination was performed using a real time ultrasound with curvilinear transducer of 2-5 MHz and linear transducer of 7-10 MHz with ingestion of boiled cooled water. Plain and contrast MDCT study was performed in all the cases. The comparative study of ultrasonography and MDCT in diagnosing and staging of gastric carcinoma were analysed. Results: The accuracy in detection of gastric carcinoma by USG was 80% (24/30 cases) and MDCT was 87% (26/30 cases), with p value of < 0.01 which is significant, which shows CT is better modality for diagnosing gastric carcinoma. For T staging, the efficacy of MDCT and USG was 90% (27/30 cases) and 80% (24/30 cases) respectively. For nodal status, the accuracy of CT is 73.3 %(22/30 cases) and USG is 63.3 %(19/30 cases). For distant metastasis, accuracy was same with USG and CT (70%, 27/30 cases). But when both the modalities are combined, the efficacy improves for diagnosing and staging gastric carcinoma by 93% with P<0.05. The anastomosis degree of the gastric carcinoma between enhanced CT and ultrasonography was κ=0.404 Conclusion: Overall USG and Multi-detector row CT with combined water and air distention can improve the accuracy of preoperative staging of gastric cancer. Comprehensive imaging of US and MDCT is helpful to improve the accuracy of detection and staging of gastric carcinoma.

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“…Recently, TUS has been recognized as a diagnostic modality for patients with gastrointestinal disorders [6][7][8] and has been used to assess gastric wall thickness and for the preoperative staging of gastric cancer. [9][10][11][12] Ishigami et al 13 reported the usefulness of TUS in early gastric cancer but not in advanced gastric cancer and did not demonstrated the details of TUS imaging. Although the use of TUS to preoperatively diagnose the depth of tumor invasion may benefit patients, few reports have investigated its ability of determining the depth in detail in patients with gastric cancer.…”

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confidence: 99%

Transabdominal Ultrasonography for Assessing the Depth of Tumor Invasion in Gastric Cancer

et al. 2017

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Background Although endoscopy and endoscopic ultrasonography are generally used to diagnose the depth of gastric tumor invasion, endoscopy is invasive and frequently results in patient discomfort. Transabdominal ultrasonography (TUS) is noninvasive and may be useful in determining this depth. We investigated the usefulness of TUS in determining the depth of tumor invasion in patients with gastric cancer. Methods This retrospective study included 190 patients with gastric cancer and 200 lesions who underwent curative resection at the Department of Gastrointestinal Surgery of Tottori University Hospital from July 2007 to July 2015. The results of conventional diagnostic imaging and TUS were compared with those of pathological analysis obtained after surgery. Furthermore, the ruptured form of the third layer on TUS imaging was reviewed and investigated to differentiate between the SM2 and MP lesions. Results The accuracy of TUS was similar to that of conventional diagnostic imaging for all depths of tumor invasion. Eight lesions could not be assessed by TUS, including four that could not be identified and four in which TUS was unable to diagnose the depth. In cases where the ruptured form of the third layer could be determined in MP lesions, the forms were observed toward the inside of the gastric lumen. Conclusion The results of this study suggested that the accuracy of TUS was equivalent to that of conventional diagnostic imaging in determining the depth of tumor invasion. TUS assessment criteria may be useful to classify this depth. Furthermore, the ruptured form of the third layer is believed to be important in distinguishing between early and advanced gastric cancer.

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Efficacy of hydrogastric sonography and spiral computed tomography in staging of gastric carcinoma—A comparative study

Abstract: When compared with HPE, HGS was found to be more accurate than helical CT for assessment of T and N staging. Sonographic and helical CT were equally accurate for the assessment of M stage.

Cited by 7 publications

References 16 publications

Prediction of T stage in gastric carcinoma by enhanced CT and oral contrast-enhanced ultrasonography

Prediction of T stage in gastric carcinoma by enhanced CT and oral contrast-enhanced ultrasonography

Comparative Study of Transabdominal Ultrasonography and Multidetector Row Computed Tomography in Preoperative Staging of Gastric Carcinoma

Transabdominal Ultrasonography for Assessing the Depth of Tumor Invasion in Gastric Cancer

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