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  • Title: [CT-guided thoracic biopsy. Personal experience with DBNH Haaga 20 G needles].
    Author: Consalvo M, Ricupero L, Lascialfari L, Salani G, Arganini L, Di Lollo S, Masi A.
    Journal: Radiol Med; 1993 Sep; 86(3):234-9. PubMed ID: 8210531.
    Abstract:
    CT-guided fine-needle biopsy of the chest is nowadays a conventional diagnostic procedure, which can be furtherly improved so as to increase its diagnostic sensitivity and to reduce complications. We studied a series of possible improvements over a 2-year period (1990-1992). In our radiology department 164 CT-guided biopsies were performed in 130 men and 34 women. DBNH Haaga 20-G (15 cm) needles (Cook, Denmark) were used. This kind of needle is a coaxial cutting-edge needle used for simultaneous cytological and histological sampling. Exams were performed with a Philip Tomoscanner CX-S (scanning time: 2.8 seconds). Of 164 tissue samples, 153 (93.4%) were adequate for histological diagnosis. As for suspected neoplastic disease, our results demonstrated 108 true positives, 27 true negatives, 18 false negatives and no false positive. Sensitivity, specificity and diagnostic accuracy were 85.7%, 100% and 88.2%, respectively. In 24 cases there were minor complications--i.e., 5 cases of parenchymal hemorrhage and 19 cases of minor pneumothorax. In one case only there was major pneumothorax which required surgical drainage. On the basis of our experience, we suggest the use of such coaxial catheters as the DBNH Haaga type for the collection of both histological and cytological material because this needle reduces the need for repeated invasive and potentially dangerous maneuvers.
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