CT-Guided Transthoracic Needle Aspiration Biopsy of Small (
20 mm) Solitary Pulmonary Nodules
Yoshiharu Ohno1,
Hiroto Hatabu2,
Daisuke Takenaka1,
Takanori Higashino1,
Hirokazu Watanabe1,
Chiho Ohbayashi3 and
Kazuro Sugimura1
1 Department of Radiology, Kobe University Graduate School of Medicine, 7-5-2
Kusunoki-cho, Chuo-ku, Kobe, Hyogo 650-0017, Japan.
2 Department of Radiology, Beth Israel Deaconess Medical Center, 330 Brookline
Ave., Boston, MA 02115.
3 Division of Pathology, Kobe University Hospital, 7-5-2 Kusanoki-cho, Chuo-ku,
Kobe, Hyogo 650-0017, Japan.

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Fig. 1A. 78-year-old woman with adenocarcinoma in right upper lobe
diagnosed at conventional CT-guided biopsy (conventional method). CT images
were obtained with radiopaque grid. Puncture point was determined after
measuring distance from skin surface to pleura (distance between a and b),
needle path length (distance between b and c), and smallest angle between
pleura and needle ( ) on cathode-ray tube monitor of imager.
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Fig. 1B. 78-year-old woman with adenocarcinoma in right upper lobe
diagnosed at conventional CT-guided biopsy (conventional method). CT images
were obtained with radiopaque grid. Initial puncture was performed without
penetrating pleura. CT images were obtained to check course of biopsy
needle.
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Fig. 1C. 78-year-old woman with adenocarcinoma in right upper lobe
diagnosed at conventional CT-guided biopsy (conventional method). CT images
were obtained with radiopaque grid. When solitary pulmonary nodule was
penetrated, needle tip was checked and aspiration or histologic specimen was
obtained.
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Copyright © 2003 by the American Roentgen Ray Society.