%0 Journal Article %T A Validated Model for the Imaging Diagnosis of Cystic Lung Disease %A Wallace T. Miller %A Karen C. Patterson %A Shweta Sood %A James E. Schmitt %A Arshad A. Wani %A Robert Borden %A Maya Galperin-Aisenberg %A Mary K. Porteus %A Michelle L. Hershman %A Michael Hewitt %A Jennifer Levy %A Victor D. Babatunde %A Tetiana Glushko %A Timothy J. Niesen %A Sergey Leshchinskiy %A Karine Sahakyan %A Keyur Desai %A Jennifer A. Gillman %A Sandeep Reddy %A Michael Shriver %A Nathaniel B. Linna %A Abass M. Noor %A Aysenur Buz %A Matthew E. Biron %A Scott Simpson %J Open Journal of Radiology %P 42-57 %@ 2164-3032 %D 2023 %I Scientific Research Publishing %R 10.4236/ojrad.2023.131005 %X Rationale and Objectives: Cystic lung disease may be accurately diagnosed by imaging interpretation of specialist radiologists, without other information. We hypothesized that with minimal training non-specialists could perform similarly to specialist physicians in the diagnosis of cystic lung disease. Methods: 72 cystic lung disease cases and 25 cystic lung disease mimics were obtained from three sources: 1) a prospective acquired diffuse lung disease registry, 2) a retrospective search of medical records and 3) teaching files. Cases were anonymized, randomized and interpreted by 7 diffuse lung disease specialists and 15 non-specialist radiologists and pulmonologists. Clinical information other than age and sex was not provided. Prior to interpretation, non-specialists viewed a short PDF training document explaining cystic lung disease interpretation. Results: Correct first choice diagnosis of 85%-88% may be achieved by high-performing specialist readers and 71%-80% by non-specialists and lower-performing specialists, with mean accuracies in the diagnosis of LAM (91%, p < 0.0001), BHD (93%, p < 0.0001), PLCH (89%, p < 0.0001) and LIP (92%, p < 0.0001). A strategy based on cyst appearance: simple cysts (LAM), peri-septal cysts (BHD), bizarre-shaped cysts (PLCH) and vascular indented cysts (LIP) gave non-specialists accuracies of 90% (p < 0.0001), 94% (p < 0.0001), 92% (p < 0.0001) and 88% (p < 0.0001), respectively, for these diagnoses. Cystic lung abnormalities caused by diseases other than LAM, BHD, PLCH and LIP are rarely accurately diagnosed by imaging alone. Conclusion: With specific but limited training, non-specialist physicians can diagnose cystic lung diseases from CT appearance alone with similar accuracy to specialists, correctly identifying approximately 75% of cases. %K Lymphangioleiomyomatosis %K Histiocytosis %K Langerhans-Cell %K Idiopathic Interstitial Pneumonias %K Birt-Hogg-Dube Syndrome %K Lung Diseases %K Interstitial %K Diagnoses %K Differential %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=123533