Differential Imaging of Liver Tumors before and after Microwave Ablation with Electrode Displacement Elastography

Pohlman, Robert M.; Hinshaw, J. Louis; Ziemlewicz, Timothy J.; Lubner, Meghan G.; Wells, Shane A.; Lee, Fred T.; Alexander, Marci; Wergin, Kelly L.; Varghese, Tomy

doi:10.1016/j.ultrasmedbio.2021.03.027

Cited by 3 publications

(3 citation statements)

References 90 publications

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“…Among them, heat-induced gas bubbles generated during the ablation can cause artifacts in ultrasound elastography of ablated regions [67] , so ultrasound elastography is suggested for the evaluation of thermal lesions after ablation. Pohlman et al [68] attempted to characterize post-ablation zones using electrode displacement elastography for 13 patients with hepatocellular carcinoma or liver metastasis and compared the binarized images of coagulation zones with clinical-standard-of-care segmentation, yielding an average Dice score of 0.88. CEUS provides highly sensitive visualization of blood flow in tissues because of the utility of intravascular microbubble contrast agents [69] , which makes it the primary clinical method for evaluating the treatment effect after ablation.…”

Section: Discussionmentioning

confidence: 99%

Multimodality quantitative ultrasound envelope statistics imaging based support vector machines for characterizing tissue scatterer distribution patterns: Methods and application in detecting microwave-induced thermal lesions

Li,

Tsui,

et al. 2024

Ultrasonics Sonochemistry

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Section: Discussionmentioning

confidence: 99%

Multimodality quantitative ultrasound envelope statistics imaging based support vector machines for characterizing tissue scatterer distribution patterns: Methods and application in detecting microwave-induced thermal lesions

Li,

Tsui,

et al. 2024

Ultrasonics Sonochemistry

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“…During ablation treatments, imaging is used at five separate and distinct stages: planning, staging, monitoring, intra-procedural modification and assessment of treatment response, including technical success, treatment efficacy and complications [ 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 ].…”

Section: Imaging and Ablation Treatmentmentioning

confidence: 99%

“…Different diagnostic tools may be employed, alone or in association [ 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 ]. Computed tomography (CT) and magnetic resonance imaging (MRI) represent the traditional imaging tools employed during the pre-treatment phase in order to identify and assess the target area [ 74 , 75 , 76 , 77 , 78 , 79 , 80 , 81 , 82 , 83 , 84 , 85 , 86 ], and in surveillance of the patient to evaluate treatment efficacy and post-procedural complications [ 87 , 88 , 89 , 90 , 91 , 92 , 93 ].…”

Section: Imaging and Ablation Treatmentmentioning

confidence: 99%

Complications Risk Assessment and Imaging Findings of Thermal Ablation Treatment in Liver Cancers: What the Radiologist Should Expect

Granata

Fusco

Muzio

et al. 2022

JCM

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One of the major fields of application of ablation treatment is liver tumors. With respect to HCC, ablation treatments are considered as upfront treatments in patients with early-stage disease, while in colorectal liver metastases (CLM), they can be employed as an upfront treatment or in association with surgical resection. The main prognostic feature of ablation is the tumor size, since the goal of the treatment is the necrosis of all viable tumor tissue with an adequate tumor-free margin. Radiofrequency ablation (RFA) and microwave ablation (MWA) are the most employed ablation techniques. Ablation therapies in HCC and liver metastases have presented a challenge to radiologists, who need to assess response to determine complication-related treatment. Complications, defined as any unexpected variation from a procedural course, and adverse events, defined as any actual or potential injury related to the treatment, could occur either during the procedure or afterwards. To date, RFA and MWA have shown no statistically significant differences in mortality rates or major or minor complications. To reduce the rate of major complications, patient selection and risk assessment are essential. To determine the right cost-benefit ratio for the ablation method to be used, it is necessary to identify patients at high risk of infections, coagulation disorders and previous abdominal surgery interventions. Based on risk assessment, during the procedure as part of surveillance, the radiologists should pay attention to several complications, such as vascular, biliary, mechanical and infectious. Multiphase CT is an imaging tool chosen in emergency settings. The radiologist should report technical success, treatment efficacy, and complications. The complications should be assessed according to well-defined classification systems, and these complications should be categorized consistently according to severity and time of occurrence.

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Monitoring of percutaneous radiofrequency ablation of hepatic metastases of colorectal cancer using ultrasound elastography

Kostyleva

2024

UJCS

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Differential Imaging of Liver Tumors before and after Microwave Ablation with Electrode Displacement Elastography

Cited by 3 publications

References 90 publications

Multimodality quantitative ultrasound envelope statistics imaging based support vector machines for characterizing tissue scatterer distribution patterns: Methods and application in detecting microwave-induced thermal lesions

Multimodality quantitative ultrasound envelope statistics imaging based support vector machines for characterizing tissue scatterer distribution patterns: Methods and application in detecting microwave-induced thermal lesions

Complications Risk Assessment and Imaging Findings of Thermal Ablation Treatment in Liver Cancers: What the Radiologist Should Expect

Monitoring of percutaneous radiofrequency ablation of hepatic metastases of colorectal cancer using ultrasound elastography

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