Ultrasonographic findings in gastric cancer: In vitro and in vivo studies

Miyamoto, Yukio; Nakatani, Mariko; Ida, Masahiro; Ishikawa, Takashi; N, Okazawa; Ariizumi, Masahiro; Tsujimoto, Fumio; Mizunuma, Kimiyoshi; Fukuda, Yashushi; Tada, Shimpei; Chiba, Shuichi

doi:10.1002/jcu.1870170502

Cited by 22 publications

(5 citation statements)

References 5 publications

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“…Loss of mural stratification is a sign of gastric wall disease and can be attributed to wall oedema or an infiltrative process. This is known to be a sign of malignancy, which is supported by multiple studies [7,[9][10][11][12][13][14][15]17,18].…”

Section: Discussionmentioning

confidence: 82%

“…[Table /Fig In the present study, the authors were able to detect all cases of Antropyloric malignancy as this region is easily visualised on TA-USG, especially with the use of fluid-filled techniques. However, the authors encountered challenges in imaging lesions of the posterior wall of the stomach, GE junction, fundus, and cardia [Table /Fig , [14][15][16].…”

Section: Discussionmentioning

confidence: 99%

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Diagnostic Accuracy of Transabdominal Ultrasonography in Evaluation of Gastric Malignancies: A Cross-sectional Study

Basti,

Ganesh,

Mynalli

et al. 2024

IJARS

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Introduction: Gastric cancer (GC) is the fifth most common malignancy worldwide. Transabdominal Ultrasonography (TA- USG) is a non invasive and inexpensive imaging modality that is widely available. However, there is a lack of knowledge regarding the utility of USG among radiologists in the diagnosis of GC. Aim: To evaluate the accuracy of TA-USG in the detection of gastric malignancy. Materials and Methods: This was a cross-sectional study conducted in the Department of Radiodiagnosis at Father Muller Hospital, Mangaluru, Karnataka, India from October 2021 to February 2023. Patients with Upper Gastrointestinal (UGI) symptoms and suspected Gastric Carcinoma, who underwent UGI scopy (n=107) referred from the Departments of Gastrosurgery, Medical Gastroenterology, and Oncosurgery, were included. The sensitivity, specificity, Positive Predictive Value (PPV), and Negative Predictive Value (NPV) of TA-USG in the diagnosis of GC were determined. Results: The TA-USG could diagnose 94 out of 107 cases of malignancy, with the best results in detecting antropyloric malignancy. TA-USG performed worst in early GC. The authors had four cases of early GC, all of which were not diagnosed with TA-USG. The sensitivity, specificity, PPV, NPV, Positive Likelihood Ratio (PLR), Negative Likelihood Ratio (NLR), and accuracy were calculated to be 87.85%, 93.83%, 86.24%, 94.61%, 14.23, 0.13, and 92%, respectively, with a p-value of <0.001. Conclusion: The TA-USG is a valuable tool for detecting gastric malignancy, especially in patients with gastric outlet obstruction, a non distensible stomach, or other risk factors that preclude endoscopy. It can also play a role in regions where UGI endoscopy is not available.

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Section: Discussionmentioning

confidence: 82%

Section: Discussionmentioning

confidence: 99%

Diagnostic Accuracy of Transabdominal Ultrasonography in Evaluation of Gastric Malignancies: A Cross-sectional Study

Basti,

Ganesh,

Mynalli

et al. 2024

IJARS

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“…High sensitivity and high penetration power are the key advantages of WIUS [23]. WIUS has successfully been used to describe the US features of gastric carcinoma [24] and the intestine [14,15]. WIUS can directly scan tissues shortly after gastrointestinal tract resection, providing a clear image that avoids the possibility of errors caused by inexperienced examiners.…”

Section: Discussionmentioning

confidence: 99%

Consistency of Trans-Abdominal and Water-Immersion Ultrasound Images of Diseased Intestinal Segments in Crohn’s Disease

et al. 2020

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The aim of this study is to clarify whether trans-abdominal ultrasound (TAUS) can reflect actual intestinal conditions in Crohn’s disease (CD) as effectively as water-immersion ultrasound (WIUS) does. This retrospective study enrolled 29 CD patients with 113 intestinal lesions. Five ultrasound (US) parameters (distinct presence/indistinct presence/disappearance of wall stratification in the submucosal and mucosal layers; thickened submucosal layer; irregular mucosal surface; increased fat wrapping around the bowel wall; and fistula signs) that may indicate different states in CD were determined by TAUS and WIUS for the same lesion. Using WIUS as a reference standard, the sensitivity, specificity, and accuracy of TAUS were calculated. The degree of agreement between TAUS and WIUS was evaluated by the kappa coefficient. All US parameters of TAUS had an accuracy >70% (72.6–92.7%). The highest efficacy of TAUS was obtained for fistula signs (sensitivity, specificity, and accuracy values were 63.6%, 96.0%, and 92.7%, respectively). All US parameters between TAUS and WIUS had a definitive (p ≤ 0.001) and moderate-to-substantial consistency (kappa value = 0.446–0.615). The images of TAUS showed substantial similarity to those of WIUS, suggesting that TAUS may function as a substitute to evaluate the actual intestinal conditions of CD.

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“…US, as an imaging procedure of the extent of gastric tumors, has been a topic of major interest in the last decade, and sonographic characteristics of the normal as well as fibrotic and malignant changes of the stomach wall were described previously [12,13,. Ultrasonographically, normal stomach wall appears as five deliberately aligned layers consisting of three hyper-and two hypoechoic layers (Fig.…”

Section: Discussionmentioning

confidence: 99%

Value of high‐resolution intraoperative ultrasonography in the determination of limits of horizontal tumor spread during surgery for gastric malignancy

Demirci¹,

Çetin²,

Yerdel

et al. 1995

Journal of Surgical Oncology

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Determination of the resection margins during surgery for gastric malignancy is a subject of controversy because accurate detection of horizontal limits of tumor spread is difficult by current methods. In this study, we investigated the value of intraoperative-ultrasonography (IUS) in the detection of proximal and distal limits of horizontal tumor spread (HTS) in 19 gastric adenocarcinoma (Group I) and five gastric lymphoma (Group II) patients. After sonographic and clinical limits of HTS were marked, resections were carried out 2 cm away from the IUS limits, and biopsies from IUS limits and resection margins were obtained. Then, the gap between IUS and clinical limits were recorded and compared with results of pathology. In both groups, the distance from clinical to IUS limits ranged from 0 cm to 3 cm and IUS limits were never inside the clinical limits. In Group I, results of sonographic proximal limit detection were satisfactory in all patients excluding recurrent cases (n:2) and a patient with early gastric cancer. Sonographic accuracy of distal limit detection was 68%. In Group I, only one resection margin (distal) was found to be infiltrated with cancer. In Group II, the success rate of IUS-guided HTS detection was 40%. IUS seems to be a valuable method for determining the extent of HTS during operation for gastric adenocarcinomas, especially so for the most problematic proximal limits. In recurrent cancers and lymphomas, however, results of IUS may be frequently misleading. IUS can be advocated as a routine procedure to determine the tumor limits and thus the resection margins during surgery for primary gastric adenocarcinomas.

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Ultrasonographic findings in gastric cancer: In vitro and in vivo studies

Cited by 22 publications

References 5 publications

Diagnostic Accuracy of Transabdominal Ultrasonography in Evaluation of Gastric Malignancies: A Cross-sectional Study

Diagnostic Accuracy of Transabdominal Ultrasonography in Evaluation of Gastric Malignancies: A Cross-sectional Study

Consistency of Trans-Abdominal and Water-Immersion Ultrasound Images of Diseased Intestinal Segments in Crohn’s Disease

Value of high‐resolution intraoperative ultrasonography in the determination of limits of horizontal tumor spread during surgery for gastric malignancy

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