Magnetic resonance imaging-guided microwave ablation for lung tumor: a case report

Shen, Xi-Yu; Chen, YangQuan; Yang, Bo Kyu; Nianlong, Liu; Qian, Xiaowei; Xia, Bin; Feng, Dan; Chen, Shilin

doi:10.21037/qims-20-667

Cited by 7 publications

(12 citation statements)

References 19 publications

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“…Recent reports have featured open high-field systems that provide improved visualization of lesions <1 cm, bullae, and small vessels. 11,[20][21][22][23] Of interest is also the option to operate the closed-bore (70 cm wide, 145 cm long) 1.5 T Magnetom Aera (Siemens Healthineers, Erlangen, Germany) at 0.55 T (Fig. 1), which results in reduced image distortion by virtue of the field homogeneity of this system configuration (Fig.…”

Section: Currently Available Hardware For Mr-guided Thoracic Interven...mentioning

confidence: 99%

“…21 Shen et al reported a single MR-guided MWA in a patient with a right lower lobe lung adenocarcinoma of unknown size using a 3.0 T system (Ingenia, Philips, Amsterdam, the Netherlands), the ECO-100A system (ECO Medical Instrument Co., Ltd. Nanjing, China) with a 16-G cooled ceramic antenna and local anesthesia. 22 No coil was specified. Before acquiring planning images with unspecified T2w sequences, the authors instructed the patient to hold their breath for 10 seconds at the end of normal expiration and emphasized the importance of coaching patients before the procedure.…”

Section: Mwamentioning

confidence: 99%

“…The authors reported that the ablation zone appeared "more obvious" to them on MRI compared with CT, based on their experience with CT-guided ablations. 22 Nian-Long et al 23 reported a study comparing CT to MRguidance for MWA of 44 pulmonary tumors in 43 patients using a 3.0 T system (Ingenia, Philips) with SENSE (SENSitivity Encoding) technology, a 16-channel body coil (GE), the VISON MTC-3C ablation system with 18-G 18 cm nonmagnetic antennas and local anesthesia. While the authors report that the imaging modality was randomly assigned, they fail to specify inclusion and exclusion criteria.…”

Section: Mwamentioning

confidence: 99%

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Magnetic Resonance Imaging for Guidance and Follow-up of Thoracic Needle Biopsies and Thermal Ablations

Kashani

Campbell-Washburn

Murphy

et al. 2022

Journal of Thoracic Imaging

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Magnetic resonance imaging (MRI) is used for the guidance and follow-up of percutaneous minimally invasive interventions in many body parts. In the thorax, computed tomography (CT) is currently the most used imaging modality for the guidance and follow-up of needle biopsies and thermal ablations. Compared with CT, MRI provides excellent soft tissue contrast, lacks ionizing radiation, and allows functional imaging. The role of MRI is limited in the thorax due to the low hydrogen proton density and many air-tissue interfaces of the lung, as well as respiratory and cardiac motion. Here, we review the current experience of MR-guided thoracic needle biopsies and of MR-guided thermal ablations targeting lesions in the lung, mediastinum, and the chest wall. We provide an overview of MR-compatible biopsy needles and ablation devices. We detail relevant MRI sequences and their relative advantages and disadvantages for procedural guidance, assessment of complications, and long-term follow-up. We compare the advantages and disadvantages of CT and MR for thoracic interventions and identify areas in need of improvement and additional research.

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Section: Currently Available Hardware For Mr-guided Thoracic Interven...mentioning

confidence: 99%

Section: Mwamentioning

confidence: 99%

Section: Mwamentioning

confidence: 99%

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Magnetic Resonance Imaging for Guidance and Follow-up of Thoracic Needle Biopsies and Thermal Ablations

Kashani

Campbell-Washburn

Murphy

et al. 2022

Journal of Thoracic Imaging

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“…Over the years, MRI has gained significant momentum with the emergence of new imaging techniques such as multi-channel MRI, systems with strong gradients, and innovative pulse-train techniques for parallel imaging ( Puderbach et al, 2007 ). MRI brings many advantages, including arbitrary direction imaging and high tissue resolution, and can identify changes in the ablation zone during the entire process of ablation, which is useful for monitoring changes in the ablation region ( Li et al, 2017 ; Shono et al, 2020 ; Shen et al, 2021 ). However, few studies have assessed the clinical utility and economic value of MRI-guided MWA.…”

Section: Introductionmentioning

confidence: 99%

MRI-guided microwave ablation and albumin-bound paclitaxel for lung tumors: Initial experience

Shen

Chen²,

Liu³

et al. 2022

Front. Bioeng. Biotechnol.

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Magnetic resonance-guided microwave ablation (MRI-guided MWA) is a new, minimally invasive ablation method for cancer. This study sought to analyze the clinical value of MRI-guided MWA in non-small cell lung cancer (NSCLC). We compared the precision, efficiency, and clinical efficacy of treatment in patients who underwent MRI-guided MWA or computed tomography (CT)-guided microwave ablation (CT-guided MWA). Propensity score matching was used on the prospective cohort (MRI-MWA group, n = 45) and the retrospective observational cohort (CT-MWA group, n = 305). To evaluate the advantages and efficacy of MRI-guided MWA, data including the accuracy of needle placement, scan duration, ablation time, total operation time, length of hospital stay, progression-free survival (PFS), and overall survival (OS) were collected and compared between the two groups. The mean number of machine scans required to adjust the needle position was 7.62 ± 1.69 (range 4–12) for the MRI-MWA group and 9.64 ± 2.14 (range 5–16) for the CT-MWA group (p < 0.001). The mean time for antenna placement was comparable between the MRI and CT groups (54.41 ± 12.32 min and 53.03 ± 11.29 min, p = 0.607). The microwave ablation time of the two groups was significantly different (7.62 ± 2.65 min and 9.41 ± 2.86 min, p = 0.017), while the overall procedure time was comparable (91.28 ± 16.69 min vs. 93.41 ± 16.03 min, p = 0.568). The overall complication rate in the MRI-MWA group was significantly lower than in the CT-MWA group (12% vs. 51%, p = 0.185). The median time to progression was longer in the MRI-MWA group than in the CT-MWA group (11 months [95% CI 10.24–11.75] vs. 9 months [95% CI 8.00–9.99], p = 0.0003; hazard ratio 0.3690 [95% CI 0.2159–0.6306]). OS was comparable in both groups (MRI group 26.0 months [95% CI 25.022–26.978] vs. CT group 23.0 months [95% CI 18.646–27.354], p = 0.18). This study provides hitherto-undocumented evidence of the clinical effects of MRI-guided MWA on patients with NSCLC and determines the relative safety and efficiency of MRI- and CT-guided MWA.

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“…Radiofrequency ablation (RFA) is a minimally invasive treatment based on alternating high-frequency electrical currents from an electrode that produces ionic agitation and generates frictional heat, thus causing coagulation necrosis [25][26][27]. In human medicine, the efficacy of RFA has been reported in several primary tumors and metastases, with improvements in the mass effect as well as controlling the biological activity of the tumor [28][29][30][31][32][33][34][35][36][37][38][39][40][41]. In veterinary medicine, percutaneous ultrasound-guided RFA has been used successfully to treat functioning parathyroid and thyroid masses in dogs [42][43][44][45] and cats [46], respectively.…”

Section: Introductionmentioning

confidence: 99%

Ultrasound-Guided Radiofrequency Ablation of Chemodectomas in Five Dogs

Ochoa

Alférez²,

Blas

et al. 2021

Animals

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Chemodectomas are low prevalence tumors with complex clinical management. Many present as an incidental finding however, in other dogs, they produce pericardial effusion and/or compression, leading to the appearance of severe clinical signs. There are currently several approaches: surgery, radiotherapy, stent placement and chemotherapy. This is the first description of percutaneous echo-guided radiofrequency ablation of aortic body tumors. This minimally invasive treatment is based on high frequency alternating electrical currents from an electrode that produces ionic agitation and generates frictional heat, causing coagulation necrosis. Five dogs with an echocardiographic and cytological diagnosis of chemodectoma underwent percutaneous echo-guided radiofrequency ablation. At the time of presentation, all the dogs showed clinical signs, such as ascites and/or collapse. There were no complications either during the procedure or in the following 24 hours. Rapid clinical improvement associated with a reduction in size and change in sonographic appearance of the mass were achieved with no complications. Six months follow-up was carried out in all dogs. A second percutaneous echo-guided RFA was performed eight months after the first procedure in one dog. Based on our experience, radiofrequency ablation seems to be a feasible and safe technique, making it a potential alternative therapeutic approach in the clinical management of aortic body tumors leading to severe clinical compromise.

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Magnetic resonance imaging-guided microwave ablation for lung tumor: a case report

Cited by 7 publications

References 19 publications

Magnetic Resonance Imaging for Guidance and Follow-up of Thoracic Needle Biopsies and Thermal Ablations

Magnetic Resonance Imaging for Guidance and Follow-up of Thoracic Needle Biopsies and Thermal Ablations

MRI-guided microwave ablation and albumin-bound paclitaxel for lung tumors: Initial experience

Ultrasound-Guided Radiofrequency Ablation of Chemodectomas in Five Dogs

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