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Birmingham Intervention Tent Technique (BITT): A Technical Note
R Rajakulasingam1, J Kho1, G Almeer1
1Department of Musculoskeletal Imaging, Royal Orthopaedic Hospital, Birmingham, UK.
The Indian Journal of Radiology & Imaging
|September 24, 2021
Summary
A new CT biopsy method, the Birmingham intervention tent technique (BITT), offers a safe approach for bone lesions when direct access is difficult. This inexpensive and reproducible technique has been successfully used in over 10 cases.
Area of Science:
- Medical imaging
- Interventional radiology
- Orthopedic oncology
Background:
- Biopsying osseous lesions can be challenging due to difficult patient positioning.
- Existing CT-guided biopsy techniques may not be suitable for all anatomical locations.
Purpose of the Study:
- To introduce and describe a novel CT biopsy technique, the Birmingham intervention tent technique (BITT).
- To evaluate the safety and applicability of the BITT for osseous lesions with challenging access.
Main Methods:
- The BITT involves attaching a plastic surgical forceps clamp to a biopsy needle at an angle, forming a tent shape.
- The forceps are stabilized on the examination table to guide the needle insertion.
Main Results:
- The BITT was successfully implemented in over 10 cases at the authors' institution.
- The technique demonstrated feasibility in biopsying osseous lesions where direct approaches were not possible.
Conclusions:
- The Birmingham intervention tent technique (BITT) is a novel, safe, and effective method for CT-guided bone biopsies.
- The BITT is an inexpensive, reproducible, and valuable addition to the interventional radiology toolkit for challenging osseous lesion biopsies.

