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• W189986181 abstract "Rationale and Objectives The aim of this study was to assess the relationship between immune state and cerebral signal intensity abnormalities (SIAs) on T2-weighted magnetic resonance images in subjects with human immunodeficiency virus type 1 infection and highly active antiretroviral therapy. Materials and Methods Thirty-two subjects underwent a total of 109 magnetic resonance studies. The presence of human immunodeficiency virus–associated neurocognitive disorder, categorized CD4+ T lymphocyte count, and plasma viral load were assessed for relationship with the severity and interval change of SIAs for different anatomic locations of the brain. Results Subjects with multifocal patterns of SIAs had CD4+ cell counts < 200 cells/μL in 66.0%, whereas subjects with diffuse patterns of SIAs had CD4+ cell counts < 200 cells/μL in only 31.4% (P < .001). Subjects without SIAs in the basal ganglia had CD4+ cell counts < 200 cells/μL in 37.0%, whereas subjects with minor and moderate SIAs in the basal ganglia had CD4+ cell counts < 200 cells/μL in 78.3% and 80.0%, respectively (P < .005). The percentage of subjects with CD4+ cell counts < 200 cells/μL was 85.7% when there were progressive periventricular SIA changes and 45.5% when periventricular SIA changes were stable in follow-up (P < .05). Conclusions The presence and progression of cerebral SIAs on T2-weighted magnetic resonance images reflecting cerebral infection with human immunodeficiency virus are significantly related to impaired immune state as measured by CD4+ cell count. The aim of this study was to assess the relationship between immune state and cerebral signal intensity abnormalities (SIAs) on T2-weighted magnetic resonance images in subjects with human immunodeficiency virus type 1 infection and highly active antiretroviral therapy. Thirty-two subjects underwent a total of 109 magnetic resonance studies. The presence of human immunodeficiency virus–associated neurocognitive disorder, categorized CD4+ T lymphocyte count, and plasma viral load were assessed for relationship with the severity and interval change of SIAs for different anatomic locations of the brain. Subjects with multifocal patterns of SIAs had CD4+ cell counts < 200 cells/μL in 66.0%, whereas subjects with diffuse patterns of SIAs had CD4+ cell counts < 200 cells/μL in only 31.4% (P < .001). Subjects without SIAs in the basal ganglia had CD4+ cell counts < 200 cells/μL in 37.0%, whereas subjects with minor and moderate SIAs in the basal ganglia had CD4+ cell counts < 200 cells/μL in 78.3% and 80.0%, respectively (P < .005). The percentage of subjects with CD4+ cell counts < 200 cells/μL was 85.7% when there were progressive periventricular SIA changes and 45.5% when periventricular SIA changes were stable in follow-up (P < .05). The presence and progression of cerebral SIAs on T2-weighted magnetic resonance images reflecting cerebral infection with human immunodeficiency virus are significantly related to impaired immune state as measured by CD4+ cell count." @default.
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• W189986181 date "2011-09-01" @default.
• W189986181 modified "2023-10-17" @default.
• W189986181 title "Cerebral Signal Intensity Abnormalities on T2-weighted MR Images in HIV Patients with Highly Active Antiretroviral Therapy" @default.
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• W189986181 doi "https://doi.org/10.1016/j.acra.2011.04.013" @default.
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