+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Differential diagnosis between benign gastric ulcer and depressed type early gastric cancer by an image processing method focusing on type iii

Differential diagnosis between benign gastric ulcer and depressed type early gastric cancer by an image processing method focusing on type iii

Stomach & Intestine 26(9): 1011-1018

Endoscopic diagnosis has been nearly perfected and diagnostic problems are rarely encountered in the great majority of patients. Nevertheless, there are occasions when cancer may be mistaken for an ulcer or an ulcer easily confused with a cancer. It was difficult to differentiate between the redness of regenerating mucosa at the edge of an ulcer and the redness of a cancer lesion using a conventinal fiberscope. But it is easy to distinguish between the regenerating mucosal pattern of an ulcer and the uneven punctate redness of a cancer with an electronic endoscope which provides a fine resolvable image. With this in mind, we attempted to differentiate between depressed-type early gastric cancer and benign gatric ulcer using an electronic endoscope (TGS-50B; Toshiba-Machida) and an image analyzer (SPICCA; Japan AVIONICS). We observed ulcerative lesions in detail with the electronic endoscope, and used the image analyzer to convert the redness surrounding the ulcer into binary digitized data. Next, the binary digitized pattern was separated into minimum units of gastric mucosal pits, an oval was postulated which possessed an inertial moment identical to each of the particles, and calculating its oval specification (OSF) value as the ratio of its long diameter to its short diameter, we used the average value of 20 particles as the image value. Evaluating the results of differential diagnosis of benign gastric ulcer and cancer-associated ulcer based on the OSF values obtained by image analysis gave the following results: (1) During the healing process, high OSF value in the entire periphery of the ulcer and a long, neat, string-like regenerating mucosal pattern indicate a benign ulcer. (2) The absence of a neat, string-like regenerating mucosal pattern in a portion of the margin of a gastric ulcer indicates that a malignant lesion should be suspected at that site.

Please choose payment method:

(PDF emailed within 1 workday: $29.90)

Accession: 007208709

Download citation: RISBibTeXText

Related references

Radiological diagnosis in depressed type early gastric cancer with difficulty in differential diagnosis from benign lesions. Stomach & Intestine 18(6): 577-584, 1983

Gastric inflammatory diseases which require differential diagnosis from superficial depressed type early gastric cancer: Endoscopic differential diagnosis. Stomach & Intestine 37(13): 1679-1686, 2002

Differential diagnosis of gastric ulcer and early gastric cancer type iii or type iii plus iic. Stomach & Intestine 26(9): 971-984, 1991

Differential diagnosis of superficial spreading type of early gastric cancer and gastric ulcer. Journal of Gastroenterology 3(3): 198, 1968

Diagnosis of the depressed type of early gastric cancer which is difficult to differentiate from benign lesions endoscopic diagnosis. Stomach & Intestine 18(6): 585-590, 1983

Studies on diagnosis of gastric early cancer gastric acid secretion and gastric output in relation to gastric ulcerative early cancer and benign ulcer. Japanese Journal Of Medicine: 116-117, 1975

Radiological evaluation on the depth of depressed gastric cancer--special reference to differential diagnosis of early gastric cancer from advanced gastric cancer similar to early cancer. Nihon Igaku Hoshasen Gakkai Zasshi. Nippon Acta Radiologica 38(1): 1-13, 1978

Endoscopic diagnosis of the depressed type of early gastric cancer by the RC (red patch-white coating) method. Iryo 23(9): 1147-1154, 1969

Pathological studies of the benign gastric lesions simulating the early gastric carcinoma of superficial depressive type iic with special reference to the healed gastric ulcer. Akita Central Hospital Medical Journal 5(2): 75-85, 1968

Differential diagnosis of gastric adenoma and type IIa early gastric cancer. Acta Radiologica 32(1): 37-41, 1991

X-ray diagnosis of early gastric cancer of superficial depressed type on the anterior wall of the stomach (Double contrast method in the prone position). Journal of Gastroenterology 2(4): 330-331, 1967

Endoscopic evaluation of the depth of invasion of the depressed type early gastric cancer and apparently early advanced cancer in cases of a peptic ulcer within the cancer lesion. Gastroenterologia Japonica. 28(2): 201-208, 1993

A case of type I early gastric cancer discovered after gastrectomy of depressed type early gastric cancer. Gan No Rinsho. Japan Journal of Cancer Clinics 36(12): 2173-2177, 1990

X-ray diagnosis of depressed-type early gastric stump cancer. Rinsho Hoshasen. Clinical Radiography 20(10): 925-934, 1975

Endoscopical diagnosis of early gastric cancer of superficial depressed type iic. Journal of Gastroenterology 3(3): 202, 1968