Hasil (
Bahasa Indonesia) 1:
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After skin disinfection, local anesthesia using 10–20 ml of 1–2% lidocaine hydrochloride is applied in the subcutaneous fat and down to the capsule of the parenchymal organs (e.g., the liver) or down to the periosteum of bones, using a small 22G needle that additionally marks the entry point and intended angle of the biopsy needle. After a small skin incision with a scalpel and CT rescanning with the local anesthesia needle in the skin entry point to confirm the correct position, the biopsy needle is inserted parallel to the local anesthesia needle. Thereafter, repeated CT scans covering a short range above and below the needle entry point (e.g., 3–5cm along the z-axis) are performed, and the angulation of the needle is adapted to interferinganatomical structures if necessary. Theuse of multislice spiral CT with its inherent ability to simultaneously acquire several sections is beneficial for this purpose, as it omits the need for multiple scans above and below the needle entry point. The direction of the needle in relation to the lesion can be easily detected using the streak at the needle tip. Finally, the needle is inserted into the edge of the lesion for tissue sampling.
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