Evaluating anemia in HIV-infected patients using chest CT

Area of Science:

• Radiology
• Hematology
• Infectious Diseases

Background:

• Anemia is a common complication in patients with Human Immunodeficiency Virus (HIV) infection.
• Accurate and timely assessment of anemia severity is crucial for managing HIV-infected individuals.
• Non-contrast enhanced chest computed tomography (CT) offers potential for evaluating internal body structures.

Purpose of the Study:

• To investigate the utility of Hounsfield unit values from non-contrast enhanced chest CT scans in assessing anemia severity among HIV-infected patients.
• To determine if cardiac cavity and ventricular septal densities can serve as indicators for anemia severity and critical values in this population.

Main Methods:

• Retrospective analysis of 126 HIV-infected patients with anemia.
• Categorization into mild, moderate, and severe anemia groups based on hemoglobin (HB) levels.
• Calculation of ventricular septum density (VSD) to left ventricular density (LVD) and VSD to right ventricular density (RVD) ratios.
• Comparison of LVD, RVD, VSD/LVD, and VSD/RVD between critical and non-critical anemia groups.

Main Results:

• Significant differences in LVD, RVD, VSD/LVD, and VSD/RVD were observed across the three anemia severity groups.
• The VSD/LVD ratio emerged as an independent predictor for diagnosing critical anemia values (AUC = 0.731).

Conclusions:

• Measurement of cardiac and ventricular septal densities using CT plain scans is highly accurate for evaluating anemia severity in HIV patients.
• This CT-based method can facilitate rapid early assessment of anemia severity, enabling prompt treatment initiation.