Related Experiment Videos
[Diagnostic ability of various biopsy needles]
Nihon Igaku Hoshasen Gakkai Zasshi. Nippon Acta Radiologica
|March 25, 1991
Summary
Comparing various biopsy needles for diagnostic accuracy, this study found specific needles excel in cytology and histology. Needle bore significantly impacts tissue volume for core biopsies, but not cell volume for cytology.
Area of Science:
- Medical Devices
- Surgical Pathology
- Diagnostic Imaging
Background:
- Accurate tissue and cell sampling is crucial for diagnosis.
- Various biopsy needles exist, but their comparative diagnostic abilities are not fully understood.
- Optimizing needle selection can improve diagnostic yield and patient outcomes.
Purpose of the Study:
- To compare the diagnostic performance of different biopsy needles.
- To evaluate the impact of needle gauge on sample volume for both cytology and histology.
- To identify optimal needles for cytological and histological liver biopsy.
Main Methods:
- A comparative study was conducted on rabbit livers using 8 different needles for cytology and 12 for histological core biopsy.
- Needles varied in type (Spinal, Chiba, Westcott, Rotex II, Sonopsy, Sure-cut, Majima, Quick-cut, Tru-cut, Roth-biopsy) and gauge (14G-23G).
- Sample volume was measured to assess diagnostic capability.
Main Results:
- For cytological biopsy (21-23G), recovered cell volume was independent of needle gauge.
- For histological core biopsy (14-23G), recovered tissue volume was dependent on needle gauge.
- 22G Westcott and 22G Rotex II needles yielded large cell volumes.
- 21G Sure-cut and 21G Majima needles provided sufficient tissue volume for histological diagnosis.
Conclusions:
- Needle selection is critical for optimizing diagnostic sample acquisition.
- Specific needles demonstrate superior performance for either cytological or histological analysis.
- Gauge selection significantly influences tissue yield in core biopsies, guiding optimal needle choice.