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5. BUCCAL MUCOSAL TUMORS;

Author

Ahmed, Adnan, primary, Khahro, Muslim, additional, Memon, Mushtaque Ali, additional, Channa, Surwaich Ali, additional, and Shah, Arhama, additional

Published
2017
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15. CARCINOMA OF LARYNX; THE DIAGNOSTIC ACCURACY OF COMPUTED TOMOGRAPHY SCAN IN EVALUATION OF THYROID CARTILAGE INVASION.

Author

Ahmed, Adnan, Ali Memon, Mushtaque, and Iqbal, Muhammad

Subjects
*LARYNGEAL cancer, *COMPUTED tomography, *ROUTINE diagnostic tests
Abstract

Objectives: The objective of this study was to determine the diagnostic accuracy of CT scan in detecting thyroid cartilage invasion by carcinoma of larynx keeping histopathological findings as a gold standard. Study Design: Cross sectional and descriptive study. Setting: Department of Radiology of LUMHS, And Karachi Institute of Radiotherapy & Nuclear Medicine. Period: February 2013 to August 2015. Subjects and Methods: Overall 86 patients were incorporated in this study. All these patients subsequently had their histopathology. The CT outcomes were then contrasted with histopathological results & measures of variables calculated, were based on the results. Results: Fifty patients were men & 36 patients were women. The ages varied from 31 to 65yrs with mean age of 50yrs. The specificity & sensitivity of CT in diagnosing thyroid cartilage invasion was 84.5% and 93.3% respectively. Accurateness of CT in diagnosing thyroid cartilage invasion was 86.05%. Conclusion: The study established the specificity, sensitivity, negative as well as positive predictive value and accuracy of CT scan for the detection of thyroid cartilage invasion as 84.5%, 93.3%, 98.4%, 56% and 86.05% respectively. Very low negative predictive value was found in patients of age more than 50 years. [ABSTRACT FROM AUTHOR]

Published
2016
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17. Cellulose Tailored Anatase TiO2Nanospindles in Three-Dimensional Graphene Composites for High-Performance Supercapacitors

Author

Ding, Yangbin, Bai, Wei, Sun, Jinhua, Wu, Yu, Memon, Mushtaque A., Wang, Chao, Liu, Chengbin, Huang, Yong, and Geng, Jianxin

Abstract

The morphologies of transition metal oxides have decisive impact on the performance of their applications. Here, we report a new and facile strategy for in situ preparation of anatase TiO2nanospindles in three-dimensional reduced graphene oxide (RGO) structure (3D TiO2@RGO) using cellulose as both an intermediate agent eliminating the negative effect of graphene oxide (GO) on the growth of TiO2crystals and as a structure-directing agent for the shape-controlled synthesis of TiO2crystals. High-resolution transmission electron microscopy and X-ray diffractometer analysis indicated that the spindle shape of TiO2crystals was formed through the restriction of the growth of high energy {010} facets due to preferential adsorption of cellulose on these facets. Because of the 3D structure of the composite, the large aspect ratio of the TiO2nanospindles, and the exposed high-energy {010} facets of the TiO2crystals, the 3D TiO2@RGO(Ce 1.7) exhibited excellent capacitive performance as an electrode material for supercapacitors, with a high specific capacitance (ca. 397 F g–1), a high energy density (55.7 Wh kg–1), and a high power density (1327 W kg–1) on the basis of the masses of RGO and TiO2. These levels of capacitive performance far exceed those of previously reported TiO2-based composites.

Published
2016
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