Transcatheter Arterial Embolization with a Mixture of Absolute Ethanol and Iodized Oil for Poorly Visualized Endophytic Renal Masses Prior to CT-Guided Percutaneous Cryoablation

Abstract

TAE using a mixture of absolute ethanol and iodized oil to improve visualization of endophytic renal masses facilitated tumor localization on unenhanced CT, permitting depiction of the tumor edge as well as a safe margin for ablation during CT-guided PCA, with an acceptable decline in renal function.

Estimated glomerular filtration rate on postoperative day 1 is associated with renal functional outcome after percutaneous renal cryoablation for renal tumors

“…Patients with an insufficient follow up of <6 months and those who underwent PCA for recurrent tumors after cryoablation were excluded; the remaining 73 patients formed the study population. PCA was carried out using an argon‐based cryoablation system (CRYO‐HIT; Galil Medical, Yokneam, Israel), as previously described …”

“…PCA was carried out using an argon-based cryoablation system (CRYO-HIT; Galil Medical, Yokneam, Israel), as previously described. 4,5 Renal functional outcome was assessed by eGFR, calculated using the Modification of Diet in Renal Disease equation. 6 The percentage of eGFR was calculated in the same manner (%eGFR, postoperative eGFR / preoperative eGFR 9 100).…”

Percutaneous cryoablation for stage T1b renal cell carcinoma in a patient with horseshoe kidney

“…Michimoto et al. reported that the use of TAE with ethanol and iodized oil permitted visualization of an endophytic tumor with a safe margin for ice ball formation on unenhanced CT [9] . Using a mixture of 5 parts of absolute ethanol and 2 parts of iodized oil, we could visualize and safely puncture our patient's large and hypervascular tumor.…”

“…PCA for stage T1a or T1b RCC has demonstrated a high local control rate [10] . This technique allows clear visualization of the ablated area to avoid incomplete ablation and injury of adjacent organs [9] . Combined with TAE and hydrodissection to prevent complications, PCA was a safe and feasible treatment for stage T1b RCC in the HK of our patient.…”

Selective Arterial Embolization with N-Butyl Cyanoacrylate Prior to CT-Guided Percutaneous Cryoablation of Kidney Malignancies: A Single-Center Experience

“…Before administration, NBCA requires to be mixed with Lipiodol ® to make it radiopaque and to delay its polymerisation rate. The combination with Lipiodol ® also offers the potential benefit of enhancing tumor localization during CT-guided ablation [ 32 , 36 , 37 ], that could be particulalry useful in settings of poorly visualized endophytic renal tumor [ 37 ], or in patients with compromised renal function for whom contrast medium injection should be reduced.…”