Article Text

Download PDFPDF
Novel imaging detailing the origins of a pneumothorax
  1. Kozo Nakanishi1,
  2. Hidenori Goto1,
  3. Tomokazu Ito1,
  4. Yasuhito Nagata2,
  5. Shinichi Hayashi2,
  6. Toshihiro Ishihara3
  1. 1Department of General Thoracic Surgery, National Hospital Organization Saitama Hospital, Wako, Japan
  2. 2Department of Respiratory Medicine, National Hospital Organization Saitama Hospital, Wako, Japan
  3. 3Department of Radiology, National Hospital Organization Saitama Hospital, Wako, Japan
  1. Correspondence to Dr Kozo Nakanishi, Department of General Thoracic Surgery, National Hospital Organization Saitama Hospital, 2-1 Suwa, Wako, Saitama, 351-0102, Japan; k3nkns{at}


This is a prospective clinical study aimed at introducing a method to visualise the location of an air leak and to identify the bulla responsible on three-dimensional (3-D) cine CT. In 10 patients with spontaneous pneumothorax, dynamic 320-detector row CT was performed with injection of 0.9% saline into the affected pleural cavity via a preplaced chest tube. In eight cases, 3-D cine CT thoracography revealed the location of the air leak and the bulla responsible (7 cases: air stream sign; 1 case: repeated collapse and expansion of a bulla with the patient's breathing).

  • Imaging/CT MRI etc
  • Emphysema
  • Pleural Disease
View Full Text

Statistics from


  • Contributors KN takes full responsibility for the work represented in this manuscript. He performed most of the study examinations and all the surgeries. He contributed to the study concept and design, data collection, data analysis and manuscript writing. HG and TI performed examinations and surgeries and contributed to data collection and analysis. YN and SH contributed to treatment of the patients. TI contributed to manipulation of the CT scanner and reconstruction of the CT images. All authors have read and approved the final manuscript.

  • Competing interests None declared.

  • Patient consent Obtained.

  • Ethics approval The ethics committee of Saitama Hospital approved this clinical study (R2015-20).

  • Provenance and peer review Not commissioned; externally peer reviewed.

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.