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Decoding the Guidelines of Invasive Pulmonary Aspergillosis in Critical Care Setting: Imaging Perspective
Anisha Garg1, Ashu Seith Bhalla1, Priyanka Naranje1
1Department of Radiodiagnosis and Interventional Radiology, All India Institute of Medical Sciences New Delhi, New Delhi, India.
Abstract:
Invasive pulmonary aspergillosis (IPA) is a common, life-threatening opportunistic fungal infection seen in susceptible individuals especially those admitted in critical care units. Multiple guidelines have been promulgated for the diagnosis of IPA, some of which are all inclusive, while others cater to specific patient groups. Microbiology forms the crux of the majority of the diagnostic tests/criteria; however, results take a considerable amount of time. Radiology can play an important role by bridging the gap to reach at an early diagnosis. Thus, the role of a radiologist cannot be overemphasized to recognize the typical and atypical imaging manifestations of invasive aspergillosis and aid in the swift management of these cases. This review decodes the terminology and various diagnostic criteria for IPA relevant to imaging studies. Further, the differences in imaging manifestations of IPA in neutropenic and non-neutropenic patients are also discussed.
Insights
Invasive pulmonary aspergillosis (IPA), a critical fungal infection, requires prompt diagnosis. Radiology aids early detection by identifying key imaging signs, complementing lengthy microbiology results for better patient outcomes.
Area of Science:
- Medical Imaging
- Infectious Diseases
- Critical Care Medicine
Background:
- Invasive pulmonary aspergillosis (IPA) is a life-threatening opportunistic infection in immunocompromised patients, particularly in critical care settings.
- Current diagnostic guidelines for IPA vary, with many relying on microbiology, which yields results slowly.
- Radiology is crucial for bridging diagnostic delays and enabling timely management of IPA.
Purpose of the Study:
- To review the imaging manifestations of IPA and their diagnostic criteria.
- To highlight the radiologist's role in the early diagnosis and management of IPA.
- To discuss imaging differences in IPA between neutropenic and non-neutropenic patients.
Main Methods:
- Review of existing literature and diagnostic guidelines for IPA.
- Analysis of radiological imaging findings associated with IPA.
- Comparison of IPA imaging in different patient populations (neutropenic vs. non-neutropenic).
Main Results:
- Radiology offers vital clues for early IPA diagnosis, complementing traditional microbiological methods.
- Typical and atypical imaging patterns of IPA are essential for accurate interpretation.
- Imaging findings in IPA can differ significantly between neutropenic and non-neutropenic individuals.
Conclusions:
- Radiologists play a pivotal role in the early diagnosis of IPA through recognition of imaging features.
- Understanding diverse imaging criteria and manifestations is key for effective IPA diagnosis.
- Radiological assessment aids in the swift management of invasive pulmonary aspergillosis.
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