The relationship between the location of the biopsy needle and the nodule can be retrospectively confirmed by the video in the computed tomographic fluoroscopy (CTF)-guided percutaneous needle biopsy. Our purposes of this study are to clarify the diagnostic ability of CTF guided needle biopsy of pulmonary lesions, and to evaluate the usefulness of comparing CT video images with pathologic findings.
From July 1996 to June 2003, 118 patients (80 men and 38 women; mean age, 66.6 years; age range 23 to 90 years) underwent CTF-guided percutaneous needle biopsy of pulmonary lesions using an18G core needle. 30 patients in 118 patients had the operation enforced. The rate of complication and the diagnostic ability of the biopsy were evaluated. The improvement of diagnosis by the comparing between the pathologic features and images in lung biopsy was evaluated.
Pneumothorax and hemosputum occurred in 24.9% and 3.3%, respectively. The diagnostic ability of CTF-guides percutaneous needle biopsy for malignant disease was sensibility 90%, specificity 100%, and accuracy 95%. For the information only on the histopathological findings of CTF, there were 25% of definite diagnostic impossible examples such as fibrotic change and necrosis. Fibrotic change included focal fibrosis, organizing pneumonia, the central fibrosis of adencarcinoma, and so on. The diagnosable cases increased 10% by examining the histopathological findings with reference to the CTF image at the time of puncture.
CTF-guided percutaneous needle biopsy of pulmonary lesions is a safe technique. By leaving image data, evaluation of the biopsy of which portion of a pulmonary lesion was carried out was attained, and it was considered to be near by exact diagnosis.
The information CT images in CTF-guided perctaneous needle biopsy is an important role to make an accurate pathologic diagnosis.
H. Awaya, None.