Colour doppler ultrasonography provides real-time microwave field visualisation in an ex vivo porcine model

Abstract

Using colour Doppler US, the visualised field during MWA correlates with the TCZ in an ex vivo bovine liver model. Real-time, dynamic feedback of the treatment area may increase the effectiveness of MWA for liver tumours in vivo.

Microwave Ablation for Twin-Reversed Arterial Perfusion Sequence: A Novel Application of Technology

“…The microwave near field, a circumferential energy field created around the active tip of the antenna, can be monitored in real-time ultrasound throughout the ablation and has been shown to correlate with the final thermocoagulation zone [17,18] ( fig. 3 ).…”

“…Conveniently, the effects of the microwave near field are delineated by color Doppler for intraoperative monitoring ( fig. 3 ) [18] . This coagulation zone has been confirmed by pathological examination, demonstrating a well-de- fig.…”

“…This coagulation zone has been confirmed by pathological examination, demonstrating a well-de- fig. 3 , 4 ) [18] . Postablation ultrasound was used to confirm the absence of blood flow through the acardiac mass and the presence of blood flow to the intact fetus ( fig.…”

Laparoscopic microwave ablation of human liver tumours using a novel three-dimensional magnetic guidance system

“…The completeness of ablation is quantified by two methods. The first is during the ablation time, when colour Doppler imaging is used to monitor ablation activity because there is a direct correlation between the 2‐D Doppler images and the actual thermocoagulation zone in the liver tissue . The second method refers to the use of a postoperative triphasic CT scan performed at 4–6 weeks post‐procedure to determine the completeness of ablation using the mRECIST criteria (modified r esponse e valuation c riteria i n s olid t umours).…”

Induction of rapid, reproducible hepatic ablations using next-generation, high frequency irreversible electroporation (H-FIRE) in vivo

“…6 In addition, MWA creates more predictable ablations in the (relative) absence of heat sink, while allowing real-time, intraoperative ablation visualization with color Doppler ultrasound (US). 7 Irreversible electroporation (IRE) is an alternative to thermal ablation that employs high-voltage (1-3 kV) short (50-100 ms) monopolar pulses ( Fig. 1a).…”