Ismail Bozkurt^1,*, Baris Yasar¹, Mehmet Baran Uslu², Nazan Bozdogan³

Oncologie, Vol.24, No.1, pp. 163-171, 2022, DOI:10.32604/oncologie.2022.019263

Abstract Malignant melanoma caused by malignant transformation of melanocytes is associated with high mortality and is difficult to manage. Metastasis is not uncommon (up to 31% of all cases) and is closely associated with a poor prognosis. Although rare (4–5%), extracutaneous melanoma has been reported; however, primary malignant melanoma of the sacrum is extremely rare (only three case reports to date). Here, we present a 51-year-old patient who underwent surgical treatment for a lesion of the spinal canal and associated bony structures; extensive aggressive resection was required. She underwent partial sacrectomy and lumbo-iliac fixation (to maintain spinal stability). Pathology revealed malignant… More >

S. Sreedhar Kumar¹, Syed Thouheed Ahmed^2,*, Qin Xin³, S. Sandeep⁴, M. Madheswaran⁵, Syed Muzamil Basha²

CMC-Computers, Materials & Continua, Vol.72, No.1, pp. 281-299, 2022, DOI:10.32604/cmc.2022.023693

Abstract This paper presents, a new approach of Medical Image Pixels Clustering (MIPC), aims to trace the dissimilar patterns over the Magnetic Resonance (MR) image through the process of automatically identify the appropriate number of distinct clusters based on different improved unsupervised clustering schemes for enrichment, pattern predication and deeper investigation. The proposed MIPC consists of two stages: clustering and validation. In the clustering stage, the MIPC automatically identifies the distinct number of dissimilar clusters over the gray scale MR image based on three different improved unsupervised clustering schemes likely improved Limited Agglomerative Clustering (iLIAC), Dynamic Automatic Agglomerative Clustering (DAAC) and… More >

A. Sinha Roy^*, K. West^†, R. S. Rontala¹, R. K. Greenberg², R. K. Banerje^1,‡

Molecular & Cellular Biomechanics, Vol.4, No.4, pp. 211-226, 2007, DOI:10.3970/mcb.2007.004.211

Abstract Interventional treatment of aortic aneurysms using endovascular stentgrafting is a minimally invasive technique. Following device implantation, transient drag forces act on the stentgraft. When the drag force exceeds the fixation force, complications like stentgraft migration, endoleaks and stentgraft failure occur. In such a scenario the device becomes unstable, causing concern over the long-term durability of endovascular repairs. The objective of this study is: 1) to measure the drag force on iliac limb stentgraft, having a distal diameter that is half the size of the proximal end, in an in vitro experiment; 2) to calculate the drag force using blood flow--compliant… More >