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Idiopathic Interstitial Pneumonias: Diagnostic Accuracy of Thin-Section CT in 129 Patients1

Takeshi Johkoh, MD, Nestor L. Müller, MD, PhD, Yannick Cartier, MD, Peter V. Kavanagh, MD, Thomas E. Hartman, MD, Masanori Akira, MD, Kazuya Ichikado, MD, Masayuki Ando, MD and Hironobu Nakamura, MD

1 From Dept of Radiology, Vancouver Hospital and Health Sciences Centre, 855 W 12th Ave, Vancouver, BC, Canada V5Z 1M9 (T.J., N.L.M., Y.C., P.V.K.); Dept of Radiology, Mayo Clinic, Rochester, Minn (T.E.H.); Dept of Radiology, National Kinki Chuo Hospital for Chest Disease, Osaka, Japan (M. Akira); First Dept of Internal Medicine, Kumamoto University School of Medicine, Japan (K.I., M. Ando); Dept of Radiology, Osaka University Medical School (H.N.). Received May 15, 1998; revision requested Jul 13; revision received Aug 8; accepted Oct 26. Address reprint requests to N.L.M.



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  		Figure 1. UIP in a 56-year-old man. Thin-section (1-mm-collimation) CT scan through the right basal segments demonstrates extensive areas of ground-glass attenuation and localized intralobular reticular opacities (white arrows). Mild honeycombing (black arrows) also is present.

 


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  		Figure 2. AIP in a 48-year-old woman. Thin-section (1-mm-collimation) CT scan of the right lung obtained 2 cm below the level of the tracheal carina demonstrates diffuse ground-glass attenuation and intralobular reticular opacities (arrows).

 


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  		Figure 3. BOOP in an 81-year-old woman. Thin-section (1-mm-collimation) CT scan obtained 1 cm below the level of the tracheal carina shows patchy bilateral air-space consolidation (open arrows) and areas of ground-glass attenuation (curved arrows). Ill-defined nodular areas of consolidation (solid straight arrows) also are present.

 


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  		Figure 4. DIP in a 42-year-old man. Thin-section (1-mm-collimation) CT scan obtained at the level of the dome of the right hemidiaphragm demonstrates diffuse, bilateral areas of ground-glass attenuation (arrows).

 


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  		Figure 5. NIPF in a 69-year-old woman. Thin-section (1-mm-collimation) CT scan obtained 1.5 cm below the level of the tracheal carina demonstrates areas of air-space consolidation (straight arrows) with a predominantly peribronchovascular distribution. Focal areas of ground-glass attenuation (curved arrows) also are present.

 




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