Evaluation of 14- and 11-gauge directional, vacuum-assisted biopsy probes and 14-gauge biopsy guns in a breast parenchymal model
| Autor: | Thorsten L. Krebs, C.-C. J. Sun, Wendie A. Berg, L. S. Magder, C. Campassi |
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| Rok vydání: | 1997 |
| Předmět: |
Adult
Turkeys Biopsy guns Stereotaxic Techniques Core Specimen Biopsy Medicine Animals Humans Radiology Nuclear Medicine and imaging Breast Muscle Skeletal Aged Aged 80 and over medicine.diagnostic_test business.industry Biopsy Needle Gauge (firearms) Middle Aged Evaluation Studies as Topic Vacuum-Assisted Biopsy Surgical biopsy Stereotaxic technique Female business Core biopsy Nuclear medicine |
| Zdroj: | Radiology. 205(1) |
| ISSN: | 0033-8419 |
| Popis: | To compare commercially available 14-guage core biopsy guns and 11- and 14-gauge, directional, vaccum-assisted biopsy probes for tissue yield and fragmentation.One hundred passes were made through fresh turkey breasts by using each of 11 14-gauge, automated biopsy gun-needle combinations and a directional, stereotactic, vacuum-assisted biopsy system equipped with 11- or 14-gauge probes. Specimens were measured for total weight, individual length, diameter, and number of fragments.Among the handheld devices, the Pro-Mag 2.2 gun (Manan Medical Products, Northbrook, Ill) and 14-gauge Biopsy-Cut needle (Bard, Covington, Ga) had the greatest yield (17.7 mg per core specimen); this combination also produced the greatest percentage of nonfragmented cores (83%). Directional, vacuum-assisted biopsy specimens were significantly larger (P.001): 36.8 mg per core specimen for the 14-gauge probe and 94.4 mg per core specimen for the 11-gauge probe. Specimens obtained with directional, vacuum-assisted biopsy were more fragmented than those obtained with spring-actuated, two-stage, long-throw, automated biopsy systems.Statistically significant differences with various biopsy devices are seen in the breast tissue yield and in fragmentation. |
| Databáze: | OpenAIRE |
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