Physical Model-Based Contrast Enhancement of Computed Tomography Images: Contrast Enhancement of Computed Tomography

2016 ◽  
Author(s):  
Yi-Wen Chen ◽  
Cheng-Ting Shih ◽  
Hsin-Hon Lin ◽  
Keh-Shih Chuang
Keyword(s):  
Computed Tomography ◽  
Contrast Enhancement ◽  
Physical Model ◽  
Model Based ◽  
Computed Tomography Images

scholarly journals Head Computed Tomography Images of HIV/AIDS Patients with Suspected Cerebral Toxoplasmosis in Dr. Soetomo General Hospital Surabaya

2019 ◽  
Vol 2 (1) ◽  
pp. 21
Author(s):  
Ria Wibawani ◽  
Bambang Soeprijanto ◽  
Widiana Ferriastuti ◽  
Erwin A Triyono
Keyword(s):  
Computed Tomography ◽  
Contrast Enhancement ◽  
Ct Images ◽  
Cerebral Toxoplasmosis ◽  
Aids Patients ◽  
Total Recovery ◽  
Computed Tomography Images ◽  
Perifocal Edema ◽  
Head Computed Tomography ◽  
Hiv Aids

Introduction: Toxoplasma gondii is an intracellular pathogenic parasite with the majority of co-infections occurring in HIV/AIDS patients. This study assesses the head computed tomography (CT) images of cerebral toxoplasmosis in patients with HIV/AIDS.Methods: This study was a cross-sectional design using head CT images of 35 HIV/AIDS patients with suspected cerebral toxoplasmosis. Variables include lesion type, location, size, CD4 count, and therapeutic result with anti-cerebral toxoplasmosis. All data analysed descriptively.Results: From total 110, 35 patients met the inclusion criteria. 24 patients (68.6%) were male and 11 (31.4%) female, average age, was 36.1. 8 patients (22.3%) had lesions in cortical, 31 patients (88.6%) had < 1 cm lesion. Single lesions mainly calcified and found in the right centrum semiovale while multiple lesions were subcortical. A hypodense lesion with rim or nodular contrast enhancement is found in 75% of patients with CD4 > 200 in contrast to slight rim contrast enhancement and perifocal edema in patients with CD4 < 200. 20 patients (57.4%) had improved condition after anti-toxoplasmosis therapy.Conclusion: Cerebral toxoplasmosis lesions in HIV/AIDS patients have various types of imaging findings, mostly multiple, with most frequent location being cortical and diameter < 1 cm. Total recovery is achieved in the majority of patients with therapy.

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