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Renal sympathetic denervation (RSDN) is a minimally invasive, endovascular catheter based procedure using radiofrequency ablation or ultrasound ablation aimed at treating resistant hypertension (high blood pressure not controlled by medication). [1]
Solid malignant tumors in the kidney do not exhibit specific enhancement patterns like some liver lesions, and no valid enhancement criteria between benign and malignant renal lesions have been proposed. However, CEUS is used in some patients after ablation of renal cell carcinoma to evaluate contrast uptake in the treated area (Figure 30).
The newer ablation modalities, such as IRE, microwave ablation (MWA), and high-intensity focused ultrasound, may help overcome the challenges in tumor size. [ 92 ] The first human studies have proven the safety of IRE for the ablation of renal masses; however, the effectiveness of IRE through histopathological examination of an ablated renal ...
[83] [84] Ideally, percutaneous ablation is restricted to tumours smaller than 3.5 cm and to guide the treatment. However, there are some cases where ablation can be used on tumors that are larger. [82] The two main types of ablation techniques that are used for renal cell carcinoma are radio frequency ablation and cryoablation. [82]
Since the 1990s, a race-based method for assessing kidney function placed many Black patients lower on the transplant waitlist. "We have a long history in this country of actually biases against ...
However, guidelines published by the Royal College of Radiologists suggests this is not as important for patients having <100mls of contrast, who have a normal kidney function. If kidney impairment is found before administration of the contrast, metformin should be stopped 48 hours before and after the procedure. [9]
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The experimental thulium fiber laser (TFL) is being studied as a potential alternative to the holmium:YAG (Ho:YAG) laser for the treatment of kidney stones. The TFL has several potential advantages compared to Ho:YAG laser for lithotripsy, including a four times lower ablation threshold, a near single-mode beam profile, and higher pulse rates ...