How to locate the puncture point of renal biopsy needle?

Generally speaking, during the development of renal biopsy technology, localization technology has experienced body surface marker experience localization, intravenous pyelography X-ray localization, early ultrasonic preoperative localization, and currently commonly used real-time ultrasonic localization and guidance, and even CT localization can be used. .

Currently, the most commonly used clinically is real-time ultrasonic positioning and guided puncture. Real-time ultrasonic positioning and guided renal puncture are very important for reducing the complications of renal biopsy puncture and improving the success rate of puncture. Initially, ultrasound body surface positioning was used to measure the distance from the skin to the renal capsule to calculate the depth, and then the ultrasound probe was removed to insert the needle. This positioning method still has certain blindness.

Because the actual needle insertion path may be inconsistent with the path of advanced ultrasound positioning, it will increase the risk of renal biopsy puncture and reduce the success rate of renal biopsy. Under real-time ultrasound guidance, the operator can observe the path and depth of needle entry, which can reduce some risks and improve the success rate. Because the patient's right kidney is relatively low and easy to puncture, many units use right kidney puncture biopsy.

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