introduction: there are different methods to repair retinal detachment. in this trial the retinopexy in repairmen of retinal regmatogenesis rd is compared with other methods in qazvin teaching hospitals during 1993-2003. methods: this out come study was conducted on 47 patients with s/b and retinal break cryopexy (group i) , 30 patients undergoing s/b with barrier laser photocoagulation around ...

distribution of retinal blood vessels (rbvs) in retinal images has an important role in the prevention, diagnosis, monitoring and treatment of diseases, such as diabetes, high blood pressure, or heart disease. therefore, detection of the exact location of rbvs is very important for ophthalmologists. one of the frequently used techniques for extraction of these vessels is region growing-based se...

In this paper we consider the problem of blood vessel segmentation in retinal images. After enhancing the retinal image we use green channel of images for segmentation as it provides better discrimination between vessels and background. We consider the negative of retinal green channel image as a topographical surface and extract ridge points on this surface. The points with this property are l...

conclusions liver metastasis of neuroendocrine tumors in iran presents in a very similar manner as that seen in western countries. in about 89% of cases with liver-net, complete imaging, clinical, and pathological studies can help to identify the primary origin of the liver-net, which is very important in the patient’s management. results the most common primary site of metastatic gi-net to the...

Metastatic tumors account for 1% of all oral malignancies. Metastasis to jaw bones is common, particularly in the mandible, rare in the oral soft tissues, and account for only 0.1% of oral malignancies. The majority of metastatic cases (70%) reported in the literature have primary tumors located in the lung, breast, kidney, and colon. Metastasis is a biological complex process that involves det...

metastases are the most common malignant hepatic lesions and considered to be the most frequent indication for imaging of the liver. the accurate detection and characterization of liver metastasis remains a critical issue at the initial diagnosis of primary cancer or during the course of patient treatment. in the recent years, the advent of highly efficient imaging modalities and new techniques...

Background: Metastasis from hepatocellular carcinoma to spleen is unusual and only 5 cases were reported in the literature. Case Report: Here, we encountered a patient with recurrent isolated splenic metastasis. Conclusion: This one of rare solitary metastasis carcinoma.

purpose: to evaluate the effect of radiation with ruthenium-106 (ru-106) plaques in the control of retinal vasoproliferative tumors methods: this study is a retrospective, interventional nonrandomized case series. seven eyes of seven patients (four males and three females) with retinal vasoproliferative tumors were enrolled. the eyes were treated by ru-106 plaques with mean apex dose of 39 gy (...