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Bodard S, Guinebert S, N. Petre E, Marinelli B, Sarkar D, Barral M, H Cornelis F. Percutaneous liver interventions with robotic systems: a systematic review of available clinical solutions. Br J Radiol 2023; 96:20230620. [PMID: 37873927 PMCID: PMC10646656 DOI: 10.1259/bjr.20230620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/19/2023] [Accepted: 09/28/2023] [Indexed: 10/25/2023] Open
Abstract
OBJECTIVE Robotic-guided interventions are emerging techniques that are gradually becoming a common tool for performing biopsies and tumor ablations in liver. This systematic review aims to evaluate their advancements, challenges, and outcomes. METHODS A systematic review was conducted using the PubMed database to identify relevant articles published between January 2000 and February 2023. Inclusion criteria focused on studies that assessed robotic systems for percutaneous liver biopsies and tumor ablations. Data extraction was performed to collect information on study characteristics; robotic systems; components and software; imaging modality; degree of freedom; and needle insertion methods. The outcome measures analyzed were procedure time, radiation dose, and accuracy. RESULTS 10 studies met the inclusion criteria. The robotic devices used included MAXIO, EPIONE, ROBIO-EX, AcuBot, and ACE robotic systems. The data set consisted of 429 percutaneous thermal ablations and 57 biopsies, both robot-guided. On average, the mean deviation of probes was reduced by 30% (from 1.6 vs 3.3 mm to 2.4 vs 3.9 mm (p < 0.001)), and 40% (p < 0.05) fewer readjustments were required during the robotic-assisted interventions. Moreover, robotic systems contributed to a reduction in operating time, ranging from 15% (18.3 vs 21.7 min, p < 0.001) to 25% (63.5 vs 87.4 min, p < 0.001). Finally, the radiation dose delivered to both the patient and the operator was decreased by an average of 50% (p < 0.05) compared to manual procedures. ADVANCES IN KNOWLEDGE Robotic systems could provide precise navigation and guidance during liver biopsies and percutaneous ablations.
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Affiliation(s)
| | - Sylvain Guinebert
- Department of Radiology, University of Paris Cité, Necker Hospital, Paris, France
| | - Elena N. Petre
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, United States
| | - Brett Marinelli
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, United States
| | - Debkumar Sarkar
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, United States
| | - Matthias Barral
- Department of Radiology, Sorbonne University, Tenon Hospital, Paris, France
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Johnston EW, Basso J, Silva F, Haris A, Jones RL, Khan N, Lawrence H, Mathiszig-Lee J, McCall J, Cunningham DC, Fotiadis N. Robotic versus freehand CT-guided radiofrequency ablation of pulmonary metastases: a comparative cohort study. Int J Comput Assist Radiol Surg 2023; 18:1819-1828. [PMID: 37072657 PMCID: PMC10497639 DOI: 10.1007/s11548-023-02895-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 03/29/2023] [Indexed: 04/20/2023]
Abstract
PURPOSE Radiofrequency ablation (RFA) is a curative treatment option for small lung metastases, which conventionally involves multiple freehand manipulations until the treating electrode is satisfactorily positioned. Stereotactic and robotic guidance has been gaining popularity for liver ablation, although has not been established in lung ablation. The purpose of this study is to determine the feasibility, safety, and accuracy of robotic RFA for pulmonary metastases, and compare procedures with a conventional freehand cohort. METHODS A single center study with prospective robotic cohort, and retrospective freehand cohort. RFA was performed under general anesthesia using high frequency jet ventilation and CT guidance. Main outcomes were (i) feasibility/technical success (ii) safety using Common Terminology Criteria for Adverse Events (iii) targeting accuracy (iv) number of needle manipulations for satisfactory ablation. Robotic and freehand cohorts were compared using Mann-Whitney U tests for continuous variables, and Fisher's exact for categorical variables. RESULTS Thirty-nine patients (mean age 65 ± 13 years, 20 men) underwent ablation of 44 pulmonary metastases at single specialist cancer center between July 2019 and August 2022. 20 consecutive participants underwent robotic ablation, and 20 consecutive patients underwent freehand ablation. All 20/20 (100%) robotic procedures were technically successful, and none were converted to freehand procedures. There were 6/20 (30%) adverse events in the robotic cohort, and 15/20 (75%) in the freehand cohort (P = 0.01). Robotic placement was highly accurate with 6 mm tip-to-target distance (range 0-14 mm) despite out-of-plane approaches, with fewer manipulations than freehand placement (median 0 vs. 4.5 manipulations, P < 0.001 and 7/22, 32% vs. 22/22, 100%, P < 0.001). CONCLUSIONS Robotic radiofrequency ablation of pulmonary metastases with general anesthesia and high frequency jet ventilation is feasible and safe. Targeting accuracy is high, and fewer needle/electrode manipulations are required to achieve a satisfactory position for ablation than freehand placement, with early indications of reduced complications.
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Affiliation(s)
- Edward W Johnston
- Interventional Radiology, Royal Marsden Hospital, 203 Fulham Road, London, SW36JJ, UK.
- Institute of Cancer Research, 123 Old Brompton Road, London, SW73RP, UK.
| | - Jodie Basso
- Interventional Radiology, Royal Marsden Hospital, 203 Fulham Road, London, SW36JJ, UK
| | - Francisca Silva
- Interventional Radiology, Royal Marsden Hospital, 203 Fulham Road, London, SW36JJ, UK
| | - Arafat Haris
- Interventional Radiology, Royal Marsden Hospital, 203 Fulham Road, London, SW36JJ, UK
| | - Robin L Jones
- Sarcoma Unit, Medical Oncology, Royal Marsden Hospital, 203 Fulham Road, London, SW36JJ, UK
- Institute of Cancer Research, 123 Old Brompton Road, London, SW73RP, UK
| | - Nasir Khan
- Interventional Radiology, Royal Marsden Hospital, 203 Fulham Road, London, SW36JJ, UK
| | - Helen Lawrence
- Department of Anaesthesia and Perioperative Medicine, Royal Marsden Hospital, 203 Fulham Road, London, SW36JJ, UK
| | - Jakob Mathiszig-Lee
- Department of Anaesthesia and Perioperative Medicine, Royal Marsden Hospital, 203 Fulham Road, London, SW36JJ, UK
| | - James McCall
- Interventional Radiology, Royal Marsden Hospital, 203 Fulham Road, London, SW36JJ, UK
| | - David C Cunningham
- Gastrointestinal Unit, Medical Oncology, Royal Marsden Hospital, 203 Fulham Road, London, SW36JJ, UK
- Institute of Cancer Research, 123 Old Brompton Road, London, SW73RP, UK
| | - Nicos Fotiadis
- Interventional Radiology, Royal Marsden Hospital, 203 Fulham Road, London, SW36JJ, UK.
- Institute of Cancer Research, 123 Old Brompton Road, London, SW73RP, UK.
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Lanza C, Carriero S, Buijs EFM, Mortellaro S, Pizzi C, Sciacqua LV, Biondetti P, Angileri SA, Ianniello AA, Ierardi AM, Carrafiello G. Robotics in Interventional Radiology: Review of Current and Future Applications. Technol Cancer Res Treat 2023; 22:15330338231152084. [PMID: 37113061 PMCID: PMC10150437 DOI: 10.1177/15330338231152084] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023] Open
Abstract
This review is a brief overview of the current status and the potential role of robotics in interventional radiology. Literature published in the last decades, with an emphasis on the last 5 years, was reviewed and the technical developments in robotics and navigational systems using CT-, MR- and US-image guidance were analyzed. Potential benefits and disadvantages of their current and future use were evaluated. The role of fusion imaging modalities and artificial intelligence was analyzed in both percutaneous and endovascular procedures. A few hundred articles describing results of single or several systems were included in our analysis.
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Affiliation(s)
- Carolina Lanza
- Postgraduate School in Radiodiagnostics, Università degli Studi di Milano, Milan, Italy
| | - Serena Carriero
- Postgraduate School in Radiodiagnostics, Università degli Studi di Milano, Milan, Italy
| | | | - Sveva Mortellaro
- Postgraduate School in Radiodiagnostics, Università degli Studi di Milano, Milan, Italy
| | - Caterina Pizzi
- Postgraduate School in Radiodiagnostics, Università degli Studi di Milano, Milan, Italy
| | | | - Pierpaolo Biondetti
- Foundation IRCCS Cà Granda-Ospedale Maggiore Policlinico, Milan, Italy
- Università degli Studi di Milano, Milan, Italy
| | | | | | | | - Gianpaolo Carrafiello
- Foundation IRCCS Cà Granda-Ospedale Maggiore Policlinico, Milan, Italy
- Università degli Studi di Milano, Milan, Italy
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Stereotactic Microwave Ablation of Hepatocellular Carcinoma: The Impact of Tumor Size and Minimal Ablative Margin on Therapeutic Success. Tomography 2022; 9:50-59. [PMID: 36648992 PMCID: PMC9844395 DOI: 10.3390/tomography9010005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/19/2022] [Accepted: 12/23/2022] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Microwave ablation (MWA) has gained relevance in the treatment of hepatic malignancies and especially in hepatocellular carcinoma (HCC), and it is an important alternative to surgery. The purpose of the study was to evaluate whether the minimal ablative margin (MAM) or the initial tumor size has a greater effect on the success of stereotactic MWA of HCC regarding the time to local tumor progression (LTP) and overall survival (OS). METHODS 88 patients, who received stereotactic MWA of 127 tumor lesions with a curative intention were included in this single-center, retrospective study. The MAM was evaluated in a side-by-side comparison of pre- and post-ablative, contrast-enhanced slice imaging. A Cox proportional hazard model with a frailty term was computed to assess the influence of the MAM and the maximum tumor diameter on the time to LTP and the OS. RESULTS The maximum tumor diameter was identified as a significant positive predictor for LTP (hazard ratio 1.04, 95% CI 1.00-1.08, p = 0.03), but it was not a significant positive predictor for the OS (p = 0.20). The MAM did not have a significant influence on LTP-free survival (p = 0.23) and OS (p = 0.67). CONCLUSION For the successful stereotactic MWA of HCC, the MAM and maximum tumor diameter might not have an influence on the OS, but the maximum tumor diameter seems to be an independent predictor of the time to LTP.
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Dong Y, Wang G, Zhang J, Zhang S, Chen X, Guo Q, Qu F, Shou F. Robotic laser position versus freehand in CT-guided percutaneous microwave ablation for single hepatocellular carcinoma (diameter < 3 cm): a preliminary study. Int J Hyperthermia 2022; 39:725-732. [PMID: 35584811 DOI: 10.1080/02656736.2022.2072526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
PURPOSE To compare the accuracy and safety of robotic laser position (RLP) versus freehand for antenna CT-guided microwave ablation (MWA) of single hepatocellular carcinoma (HCC) (diameter < 3 cm). MATERIALS AND METHODS This retrospective study was conducted between May 2020 and June 2021. A total of 40 patients with early HCC who underwent CT-guided MWA were divided into two groups: a freehand group (n = 20) and a RLP group (n = 20). Based on in-plane and out-of-plane data, the actual puncture point error (APPE), number of repositioning procedures, and operative duration were compared using the Mann-Whitney U test. Ablation-related complications were compared using the Chi-squared test. RESULTS The mean diameter of HCC patients who received MWA was 2.4 ± 0.5 cm. For in-plane APPE, APPE was comparable between the two groups (p = 0.299). However, for the out-of-plane position, the APPE in the freehand group was higher than that in the RLP group (p = 0.027). The number of repositioning procedures was 0 (range, 0-0) for RLP-guided procedures and 3 (range, 2-5) for freehand procedures, showing a statistically significant difference between the two groups (p < 0.001). The mean operative duration for freehand procedures was 39 min, compared with 26 min for RLP-guided procedures, showing a significant difference (p = 0.013). No deaths or major complications were directly related to MWA. Minor complications in the freehand group were comparable with those in the RLP group (p = 0.313). CONCLUSION RLP guidance significantly reduces the number of antenna repositioning procedures in MWA and improves puncture accuracy for target HCC out-of-plane. In addition, the operative duration of robotic guidance was shorter than that of freehand guidance.
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Affiliation(s)
- Yuru Dong
- Department of Radiology, The Third Medical Center of PLA General Hospital, Beijing, China
| | - Guisheng Wang
- Department of Radiology, The Third Medical Center of PLA General Hospital, Beijing, China
| | - Jingjun Zhang
- Department of Oncology, The People's Hospital of Jianyang City, Chengdu, China
| | - Shu Zhang
- Research Center for Birth Defects Prevention and Control Technology, Chinese PLA General Hospital, Beijing, China
| | - Xiaoxia Chen
- Department of Radiology, The Third Medical Center of PLA General Hospital, Beijing, China
| | - Qing Guo
- Department of Research, Characteristic Medical Center of Chinese People's Armed Police Force, Tianjin, China
| | - Feihuan Qu
- Readitec Medical Systems (Chengdu) Co., Ltd, Chengdu, China
| | - Feng Shou
- Department of Oncology, The People's Hospital of Jianyang City, Chengdu, China
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Luerken L, Haimerl M, Doppler M, Uller W, Beyer LP, Stroszczynski C, Einspieler I. Update on Percutaneous Local Ablative Procedures for the Treatment of Hepatocellular Carcinoma. ROFO-FORTSCHR RONTG 2022; 194:1075-1086. [PMID: 35545102 DOI: 10.1055/a-1768-0954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is the fifth most common tumor worldwide. Because many hepatocellular carcinomas are already unresectable at the time of initial diagnosis, percutaneous tumor ablation has become established in recent decades as a curative therapeutic approach for very early (BCLC 0) and early (BCLC A) HCC. The aim of this paper is to provide a concise overview of the percutaneous local ablative procedures currently in use, based on their technical characteristics as well as clinical relevance, taking into account the current body of studies. MATERIALS AND METHODS The literature search included all original papers, reviews, and meta-analyses available via MEDLINE and Pubmed on the respective percutaneous ablation procedures; the primary focus was on randomized controlled trials and publications from the last 10 years. RESULTS AND CONCLUSIONS Radiofrequency ablation (RFA) and microwave ablation (MWA) are well-established procedures that are considered equal to surgical resection in the treatment of stage BCLC 0 and A HCC with a diameter up to 3 cm due to their strong evidence in international and national guidelines. For tumors with a diameter between 3 and 5 cm, the current S3 guidelines recommend a combination of transarterial chemoembolization (TACE) and thermal ablation using RFA or MWA as combination therapy is superior to thermal ablation alone in tumors of this size and shows comparable results to surgical resection in terms of overall survival. Alternative, less frequently employed thermal procedures include cryotherapy (CT) and laser ablation (LA). Non-thermal procedures include irreversible electroporation (IRE), interstitial brachytherapy (IBT), and most recently, electrochemotherapy (ECT). Due to insufficient evidence, these have only been used in individual cases and within the framework of studies. However, the nonthermal methods are a reasonable alternative for ablation of tumors adjacent to large blood vessels and bile ducts because they cause significantly less damage to these structures than thermal ablation methods. With advances in the technology of the respective procedures, increasingly good evidence, and advancements in supportive techniques such as navigation devices and fusion imaging, percutaneous ablation procedures may expand their indications for the treatment of larger and more advanced tumors in the coming years. KEY POINTS · RFA and MWA are considered equal to surgical resection as a first-line therapy for the curative treatment of stage BCLC 0 and A HCCs with a diameter of up to 3 cm.. · For HCCs with a diameter between 3 and 5 cm, a combination of TACE and RFA or MWA is recommended. This combination therapy yields results comparable to those of surgical resection in terms of overall survival.. · Due to insufficient evidence, alternative ablation methods have only been used in individual cases and within the framework of studies. However, nonthermal methods, such as IRE, IBT, and, most recently, ECT, are a reasonable alternative for ablation of HCCs adjacent to large blood vessels and bile ducts because they cause significantly less damage to these structures than thermal ablation methods.. CITATION FORMAT · Luerken L, Haimerl M, Doppler M et al. Update on Percutaneous Local Ablative Procedures for the Treatment of Hepatocellular Carcinoma. Fortschr Röntgenstr 2022; DOI: 10.1055/a-1768-0954.
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Affiliation(s)
- Lukas Luerken
- Department of Radiology, University Hospital Regensburg, Germany
| | - Michael Haimerl
- Institut für Röntgendiagnostik, University Hospital Regensburg, Germany
| | - Michael Doppler
- Department of Radiology, University Hospital Freiburg Department of Radiology, Freiburg, Germany
| | - Wibke Uller
- Department of Radiology, University Hospital Freiburg Department of Radiology, Freiburg, Germany
| | - Lukas Philipp Beyer
- Institut für Röntgendiagnostik, University Hospital Regensburg, Germany.,Diagnostische und Interventionelle Radiologie, Klinikum Ernst von Bergmann gGmbH, Potsdam, Germany
| | | | - Ingo Einspieler
- Department of Radiology, University Hospital Regensburg, Germany
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7
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Tinguely P, Paolucci I, Ruiter SJS, Weber S, de Jong KP, Candinas D, Freedman J, Engstrand J. Stereotactic and Robotic Minimally Invasive Thermal Ablation of Malignant Liver Tumors: A Systematic Review and Meta-Analysis. Front Oncol 2021; 11:713685. [PMID: 34631539 PMCID: PMC8495244 DOI: 10.3389/fonc.2021.713685] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Accepted: 09/06/2021] [Indexed: 01/17/2023] Open
Abstract
Background Stereotactic navigation techniques aim to enhance treatment precision and safety in minimally invasive thermal ablation of liver tumors. We qualitatively reviewed and quantitatively summarized the available literature on procedural and clinical outcomes after stereotactic navigated ablation of malignant liver tumors. Methods A systematic literature search was performed on procedural and clinical outcomes when using stereotactic or robotic navigation for laparoscopic or percutaneous thermal ablation. The online databases Medline, Embase, and Cochrane Library were searched. Endpoints included targeting accuracy, procedural efficiency, and treatment efficacy outcomes. Meta-analysis including subgroup analyses was performed. Results Thirty-four studies (two randomized controlled trials, three prospective cohort studies, 29 case series) were qualitatively analyzed, and 22 studies were included for meta-analysis. Weighted average lateral targeting error was 3.7 mm (CI 3.2, 4.2), with all four comparative studies showing enhanced targeting accuracy compared to free-hand targeting. Weighted average overall complications, major complications, and mortality were 11.4% (6.7, 16.1), 3.4% (2.1, 5.1), and 0.8% (0.5, 1.3). Pooled estimates of primary technique efficacy were 94% (89, 97) if assessed at 1–6 weeks and 90% (87, 93) if assessed at 6–12 weeks post ablation, with remaining between-study heterogeneity. Primary technique efficacy was significantly enhanced in stereotactic vs. free-hand targeting, with odds ratio (OR) of 1.9 (1.2, 3.2) (n = 6 studies). Conclusions Advances in stereotactic navigation technologies allow highly precise and safe tumor targeting, leading to enhanced primary treatment efficacy. The use of varying definitions and terminology of safety and efficacy limits comparability among studies, highlighting the crucial need for further standardization of follow-up definitions.
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Affiliation(s)
- Pascale Tinguely
- Division of Surgery, Department of Clinical Sciences, Karolinska Institutet at Danderyd Hospital, Stockholm, Sweden.,Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Iwan Paolucci
- ARTORG Center for Biomedical Engineering Research, University of Bern, Bern, Switzerland
| | - Simeon J S Ruiter
- Department of Hepato-Pancreato-Biliary Surgery and Liver Transplantation, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Stefan Weber
- ARTORG Center for Biomedical Engineering Research, University of Bern, Bern, Switzerland
| | - Koert P de Jong
- Department of Hepato-Pancreato-Biliary Surgery and Liver Transplantation, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Daniel Candinas
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Jacob Freedman
- Division of Surgery, Department of Clinical Sciences, Karolinska Institutet at Danderyd Hospital, Stockholm, Sweden
| | - Jennie Engstrand
- Division of Surgery, Department of Clinical Sciences, Karolinska Institutet at Danderyd Hospital, Stockholm, Sweden
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Lin YM, Paolucci I, Brock KK, Odisio BC. Image-Guided Ablation for Colorectal Liver Metastasis: Principles, Current Evidence, and the Path Forward. Cancers (Basel) 2021; 13:cancers13163926. [PMID: 34439081 PMCID: PMC8394430 DOI: 10.3390/cancers13163926] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/30/2021] [Accepted: 08/02/2021] [Indexed: 02/07/2023] Open
Abstract
Simple Summary Colorectal cancer is the fourth most common type of cancer globally. Approximately 20% of patients with colorectal cancer present with synchronous liver metastases, and up to 60% will develop metachronous metastases during the course of the disease. Although liver resection is currently considered the local treatment of choice for colorectal liver metastasis (CLM), less than one-third of patients are eligible for surgery at the time of diagnosis of CLM. Ablation is a well-established, less invasive, locoregional therapy for patients with small CLMs, which has shown favorable oncological outcomes in patients with unresectable CLMs, comparable to those in patients eligible for surgery. The increasing knowledge of factors affecting oncological outcomes has allowed selected patients with resectable small volume CLMs to be treated with thermal ablation with curative intent. The continuous technological evolutions in imaging and image guidance have contributed to this paradigm shift in CLM treatment. The importance of patient selection, patient factors, tumor factors, ablation techniques, and clinical applications is discussed in this article. Abstract Image-guided ablation can provide effective local tumor control in selected patients with CLM. A randomized controlled trial suggested that radiofrequency ablation combined with systemic chemotherapy resulted in a survival benefit for patients with unresectable CLM, compared to systemic chemotherapy alone. For small tumors, ablation with adequate margins can be considered as an alternative to resection. The improvement of ablation technologies can allow the treatment of tumors close to major vascular structures or bile ducts, on which the applicability of thermal ablation modalities is challenging. Several factors affect the outcomes of ablation, including but not limited to tumor size, number, location, minimal ablation margin, RAS mutation status, prior hepatectomy, and extrahepatic disease. Further understanding of the impact of tumor biology and advanced imaging guidance on overall patient outcomes might help to tailor its application, and improve outcomes of image-guided ablation.
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Affiliation(s)
- Yuan-Mao Lin
- Department of Interventional Radiology, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (Y.-M.L.); (I.P.)
| | - Iwan Paolucci
- Department of Interventional Radiology, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (Y.-M.L.); (I.P.)
| | - Kristy K. Brock
- Department of Imaging Physics, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Bruno C. Odisio
- Department of Interventional Radiology, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (Y.-M.L.); (I.P.)
- Correspondence: ; Tel.: +1-713-563-7066
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van Amerongen MJ, Mariappan P, Voglreiter P, Flanagan R, Jenniskens SFM, Pollari M, Kolesnik M, Moche M, Fütterer JJ. Software-based planning of ultrasound and CT-guided percutaneous radiofrequency ablation in hepatic tumors. Int J Comput Assist Radiol Surg 2021; 16:1051-1057. [PMID: 33974224 PMCID: PMC8166805 DOI: 10.1007/s11548-021-02394-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 04/28/2021] [Indexed: 11/24/2022]
Abstract
Objectives Radiofrequency ablation (RFA) can be associated with local recurrences in the treatment of liver tumors. Data obtained at our center for an earlier multinational multicenter trial regarding an in-house developed simulation software were re-evaluated in order to analyze whether the software was able to predict local recurrences. Methods Twenty-seven RFA ablations for either primary or secondary hepatic tumors were included. Colorectal liver metastases were shown in 14 patients and hepatocellular carcinoma in 13 patients. Overlap of the simulated volume and the tumor volume was automatically generated and defined as positive predictive value (PPV) and additionally visually assessed. Local recurrence during follow-up was defined as gold standard. Sensitivity and specificity were calculated using the visual assessment and gold standard. Results Mean tumor size was 18 mm (95% CI 15–21 mm). Local recurrence occurred in 5 patients. The PPV of the simulation showed a mean of 0.89 (0.84–0.93 95% CI). After visual assessment, 9 incomplete ablations were observed, of which 4 true positives and 5 false positives for the detection of an incomplete ablation. The sensitivity and specificity were, respectively, 80% and 77% with a correct prediction in 78% of cases. No significant correlation was found between size of the tumor and PPV (Pearson Correlation 0.10; p = 0.62) or between PPV and recurrence rates (Pearson Correlation 0.28; p = 0.16). Conclusions The simulation software shows promise in estimating the completeness of liver RFA treatment and predicting local recurrence rates, but could not be performed real-time. Future improvements in the field of registration could improve results and provide a possibility for real-time implementation.
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Affiliation(s)
- M J van Amerongen
- Department of Radiology and Nuclear Medicine, Radboudumc, Nijmegen, The Netherlands.
| | - P Mariappan
- NUMA Engineering Services Ltd., Louth, Ireland.,Department of Mathematics and Statistics, IIT Tirupati, Tirupati, India
| | - P Voglreiter
- Institute of Computer Graphics and Vision, Graz University of Technology, Graz, Austria
| | - R Flanagan
- NUMA Engineering Services Ltd., Louth, Ireland
| | - S F M Jenniskens
- Department of Radiology and Nuclear Medicine, Radboudumc, Nijmegen, The Netherlands
| | - M Pollari
- Department of Computer Science, Aalto University School of Science and Technology, Espoo, Finland
| | - M Kolesnik
- Fraunhofer Institute for Applied Information Technology FIT, Sankt Augustin, Germany
| | - M Moche
- Department of Interventional Radiology, Helios Park-Klinikum Leipzig, Leipzig, Germany
| | - J J Fütterer
- Department of Radiology and Nuclear Medicine, Radboudumc, Nijmegen, The Netherlands.,Robotics and Mechatronics (RaM), University of Twente, Enschede, The Netherlands
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10
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Improvement of the primary efficacy of microwave ablation of malignant liver tumors by using a robotic navigation system. Radiol Oncol 2020; 54:295-300. [PMID: 32463387 PMCID: PMC7409605 DOI: 10.2478/raon-2020-0033] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 05/03/2020] [Indexed: 12/18/2022] Open
Abstract
Background The aim of the study was to assess the primary efficacy of robot-assisted microwave ablation and compare it to manually guided microwave ablation for percutaneous ablation of liver malignancies. Patients and methods We performed a retrospective single center evaluation of microwave ablations of 368 liver tumors in 192 patients (36 female, 156 male, mean age 63 years). One hundred and nineteen ablations were performed between 08/2011 and 03/2014 with manual guidance, whereas 249 ablations were performed between 04/2014 and 11/2018 using robotic guidance. A 6-week follow-up (ultrasound, computed tomography and magnetic resonance imaging) was performed on all patients. Results The primary technique efficacy outcome of the group treated by robotic guidance was significantly higher than that of the manually guided group (88% vs. 76%; p = 0.013). Multiple logistic regression analysis indicated that a small tumor size (≤ 3 cm) and robotic guidance were significant favorable prognostic factors for complete ablation. Conclusions In addition to a small tumor size, robotic navigation was a major positive prognostic factor for primary technique efficacy.
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Citone M, Fanelli F, Falcone G, Mondaini F, Cozzi D, Miele V. A closer look to the new frontier of artificial intelligence in the percutaneous treatment of primary lesions of the liver. Med Oncol 2020; 37:55. [PMID: 32424627 DOI: 10.1007/s12032-020-01380-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 05/08/2020] [Indexed: 02/06/2023]
Abstract
The purpose of thermal ablation is induction of tumor death by means of localized hyperthermia resulting in irreversible cellular damage. Ablative therapies are well-recognized treatment modalities for HCC lesions and are considered standard of care for HCC nodules < 3 cm in diameter in patients not suitable for surgery. Effective lesion treatment rely on complete target volume ablation. Technical limitations are represented by large (> 3 cm) or multicentric nodules as well as complex nodule location and poor lesion conspicuity. Artificial Intelligence (AI) is a general term referred to computational algorithms that can analyze data and perform complex tasks otherwise prerogative of Human Intelligence. AI has a variety of application in percutaneous ablation procedures such as Navigational software, Fusion Imaging, and robot-assisted ablation tools. Those instruments represent relative innovations in the field of Interventional Oncology and promising strategies to overcome actual limitations of ablative therapy in order to increase feasibility and technical results. This work aims to review the principal application of Artificial Intelligence in the percutaneous ablation of primary lesions of the liver with special focus on how AI can impact in the treatment of HCC especially on potential advantages on the drawbacks of the conventional technique.
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Affiliation(s)
- M Citone
- Vascular and Interventional Radiology Department, Careggi University Hospital, Florence, Italy
| | - F Fanelli
- Vascular and Interventional Radiology Department, Careggi University Hospital, Florence, Italy
| | - G Falcone
- Vascular and Interventional Radiology Department, Careggi University Hospital, Florence, Italy
| | - F Mondaini
- Vascular and Interventional Radiology Department, Careggi University Hospital, Florence, Italy
| | - D Cozzi
- Emergency Radiology Department, Careggi University Hospital, L.go G.A. Brambilla, 3, 50134, Florence, Italy
| | - V Miele
- Emergency Radiology Department, Careggi University Hospital, L.go G.A. Brambilla, 3, 50134, Florence, Italy.
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12
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Lachenmayer A, Tinguely P, Maurer MH, Frehner L, Knöpfli M, Peterhans M, Weber S, Dufour JF, Candinas D, Banz V. Stereotactic image-guided microwave ablation of hepatocellular carcinoma using a computer-assisted navigation system. Liver Int 2019; 39:1975-1985. [PMID: 31276296 DOI: 10.1111/liv.14187] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 06/20/2019] [Accepted: 06/26/2019] [Indexed: 02/13/2023]
Abstract
BACKGROUND & AIMS Ablation plays an important role in the treatment of hepatocellular carcinoma. Because image-guided navigation technology has recently entered the clinical setting, we aimed to analyse its safety, therapeutic and procedural efficiency. METHODS Retrospective analysis of patients treated with stereotactic image-guided microwave ablation (SMWA) between January 2015 and December 2017. Interventions were performed using computertomography-guidance with needle trajectory, ablation planning and automatic single-marker patient registration. Needle placement and ablation coverage was controlled by image fusion under general anaesthesia with jet-ventilation. RESULTS In total 174 ablations were performed in 88 patients during 119 interventions. Mean age was 66 (46-84) years, 74 (84.1%) were men and 74% were Child Pugh Class A. Median tumour size was 16 (4-45) mm, 62.2% were BCLC A. Median lateral and longitudinal error of needle placement were 3.2 (0.2-14.1) and 1.6 (0-15.8) mm. Median one tumour (1-4) was ablated per session. One patient developed a Dindo IIIb (0.8%) complication, six minor complications. After re-ablation of 12 lesions, an efficacy rate of 96.3% was achieved. Local tumour progression was 6.3% (11/174). Close proximity to major vessels was significantly correlated with local tumour progression (P < .05). Median overall follow-up was 17.5 months after intervention and 24 months after initial diagnosis. BCLC stage, child class and previous treatment were significantly correlated with overall survival (P < .05). CONCLUSION Stereotactic image-guided microwave ablation is a safe and efficient treatment for HCC offering a curative treatment approach in general and in particular for lesions not detectable on conventional imaging or untreatable because of difficult anatomic locations.
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Affiliation(s)
- Anja Lachenmayer
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Pascale Tinguely
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Martin H Maurer
- Department of Radiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Lorenz Frehner
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Marina Knöpfli
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | | | - Stefan Weber
- ARTORG Center for Biomedical Engineering Research, University of Bern, Bern, Switzerland
| | - Jean-François Dufour
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Daniel Candinas
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Vanessa Banz
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
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13
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Dalag L, Fergus JK, Zangan SM. Lung and Abdominal Biopsies in the Age of Precision Medicine. Semin Intervent Radiol 2019; 36:255-263. [PMID: 31435134 DOI: 10.1055/s-0039-1693121] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Image-guided percutaneous needle biopsies (PNBs) are one of the most common procedures performed in radiology departments today. Rapid developments in precision medicine, which identifies molecular and genomic biomarkers in cancers, have ushered a new paradigm of oncologic workup and treatment. PNB has conventionally been used to establish a benign or malignant nature of a lesion during initial diagnosis or in suspected metastatic or recurrent disease. However, increasing amounts of tissue are being required to meet the demands of molecular pathologic analysis, which are now being sought at multiple time points during the course of the disease to guide targeted therapy. As primary providers of biopsy, radiologists must be proactive in these developments to improve diagnostic yield and tissue acquisition in PNB. Herein, we discuss the important and expanding role of PNB in the age of precision medicine and review the technical considerations of percutaneous lung and intra-abdominal biopsy. Finally, we examine promising state-of-the-art techniques in PNB that may safely increase tissue acquisition for optimal molecular pathologic analysis.
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Affiliation(s)
- Leonard Dalag
- Department of Radiology, University of Chicago, Chicago, Illinois
| | | | - Steven M Zangan
- Department of Radiology, University of Chicago, Chicago, Illinois
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14
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Fuhrmann I, Probst U, Wiggermann P, Beyer L. Navigation Systems for Treatment Planning and Execution of Percutaneous Irreversible Electroporation. Technol Cancer Res Treat 2018; 17:1533033818791792. [PMID: 30071779 PMCID: PMC6077881 DOI: 10.1177/1533033818791792] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The application of navigational systems has the potential to improve percutaneous interventions. The accuracy of ablation probe placement can be increased and radiation doses reduced. Two different types of systems can be distinguished, tracking systems and robotic systems. This review gives an overview of navigation devices for clinical application and summarizes first findings in the implementation of navigation in percutaneous interventions using irreversible electroporation. Because of the high number of navigation systems, this review focuses on commercially available ones.
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Affiliation(s)
- Irene Fuhrmann
- 1 Department of Radiology, University Hospital Regensburg, Regensburg, Germany
| | - Ute Probst
- 1 Department of Radiology, University Hospital Regensburg, Regensburg, Germany
| | - Philipp Wiggermann
- 1 Department of Radiology, University Hospital Regensburg, Regensburg, Germany
| | - Lukas Beyer
- 1 Department of Radiology, University Hospital Regensburg, Regensburg, Germany
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15
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Abstract
Robotic liver resection can overcome some of the limitations of laparoscopic liver surgery; therefore, it is a promising tool to increase the proportion of minimally invasive liver resections. The present article gives an overview of the current literature. Furthermore, the results of a nationwide survey on robotic liver surgery among hospitals in Germany with a DaVinci system used in general visceral surgery and the perioperative results of two German robotic centers are presented.
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16
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Beyer LP, Lürken L, Verloh N, Haimerl M, Michalik K, Schaible J, Stroszczynski C, Wiggermann P. Stereotactically navigated percutaneous microwave ablation (MWA) compared to conventional MWA: a matched pair analysis. Int J Comput Assist Radiol Surg 2018; 13:1991-1997. [PMID: 29728899 DOI: 10.1007/s11548-018-1778-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Accepted: 04/26/2018] [Indexed: 12/22/2022]
Abstract
PURPOSE To compare CT-navigated stereotactic microwave ablation (SMWA) to non-navigated conventional MWA (CMWA) for percutaneous ablation of liver malignancies. METHODS A matched pair analysis of 36 patients who underwent MWA of primary or secondary liver malignancies (10 hepatocellular carcinoma and 8 metastases) was conducted. A total of 18 patients undergoing SMWA were included in this prospective study. Patients were matched in terms of tumor size, liver segment and entity to retrospective CMWA procedures. The endpoints were procedure time, accuracy of needle placement, technical success rate, complication rate and dose-length product (DLP). RESULTS The procedure durations were 23.9 min (SD 3.7) for CMWA and 21.8 min (SD 16.3) for SMWA (p = 0.22). The procedural accuracy for SMWA and CMWA was identical for both groups (3.7 mm). The total DLP was significantly lower for SMWA than for CMWA (2115 mGy cm (SD 276) vs. 3109 mGy cm (SD 1137), respectively; p < 0.01). Complete ablation without residual tumor was observed in 94% (17 of 18) of SMWA and in 83% (15 of 18) of CMWA patients (p = 0.31). No complications occurred. CONCLUSIONS SMWA is highly accurate and reduces the radiation dose without increasing the procedure time.
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Affiliation(s)
- L P Beyer
- Department of Radiology, University Hospital Regensburg, 93053, Regensburg, Germany.
| | - L Lürken
- Department of Radiology, University Hospital Regensburg, 93053, Regensburg, Germany
| | - N Verloh
- Department of Radiology, University Hospital Regensburg, 93053, Regensburg, Germany
| | - M Haimerl
- Department of Radiology, University Hospital Regensburg, 93053, Regensburg, Germany
| | - K Michalik
- Department of Radiology, University Hospital Regensburg, 93053, Regensburg, Germany
| | - J Schaible
- Department of Radiology, University Hospital Regensburg, 93053, Regensburg, Germany
| | - C Stroszczynski
- Department of Radiology, University Hospital Regensburg, 93053, Regensburg, Germany
| | - P Wiggermann
- Department of Radiology, University Hospital Regensburg, 93053, Regensburg, Germany
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17
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Li D, Cheng Z, Chen G, Liu F, Wu W, Yu J, Gu Y, Liu F, Ren C, Liang P. A multimodality imaging-compatible insertion robot with a respiratory motion calibration module designed for ablation of liver tumors: a preclinical study. Int J Hyperthermia 2018; 34:1194-1201. [PMID: 29566561 DOI: 10.1080/02656736.2018.1456680] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Affiliation(s)
- Dongrui Li
- Department of Interventional Ultrasound, Chinese PLA General Hospital, Beijing, China
| | - Zhigang Cheng
- Department of Interventional Ultrasound, Chinese PLA General Hospital, Beijing, China
| | - Gang Chen
- Department of Interventional Ultrasound, Chinese PLA General Hospital, Beijing, China
| | - Fangyi Liu
- Department of Interventional Ultrasound, Chinese PLA General Hospital, Beijing, China
| | - Wenbo Wu
- Beijing Baihui Weikang Medical Robot Technology Co., Ltd, Beijing, China
| | - Jie Yu
- Department of Interventional Ultrasound, Chinese PLA General Hospital, Beijing, China
| | - Ying Gu
- Department of Laser Medicine, Chinese PLA General Hospital, Beijing, China
| | - Fengyong Liu
- Department of Intervention Therapy, Chinese PLA General Hospital, Beijing, China
| | - Chao Ren
- Department of Interventional Ultrasound, Chinese PLA General Hospital, Beijing, China
| | - Ping Liang
- Department of Interventional Ultrasound, Chinese PLA General Hospital, Beijing, China
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18
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Beyer LP, Wiggermann P. Planning and guidance: New tools to enhance the human skills in interventional oncology. Diagn Interv Imaging 2017; 98:583-588. [PMID: 28818346 DOI: 10.1016/j.diii.2017.07.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 07/12/2017] [Indexed: 12/13/2022]
Abstract
Navigation systems have the potential to achieve a high accuracy for percutaneous ablation of tumors even for those in difficult locations. In the last years, successful research has been conducted to make navigation devices applicable to percutaneous tumor ablation with special planning software that now allows high accuracy even for deep-located small lesions close to critical structures. Because of the high number of available navigation systems, this review focuses on those with preexisting clinical studies.
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Affiliation(s)
- L P Beyer
- Department of Radiology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany.
| | - P Wiggermann
- Department of Radiology, University Medical Center Regensburg, Franz-Josef-Strauß-Allee 11, 93053 Regensburg, Germany
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19
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Stereotactic CT-Guided Percutaneous Microwave Ablation of Liver Tumors With the Use of High-Frequency Jet Ventilation: An Accuracy and Procedural Safety Study. AJR Am J Roentgenol 2016; 208:193-200. [PMID: 27762601 DOI: 10.2214/ajr.15.15803] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
OBJECTIVE The purpose of the present study is to evaluate the accuracy and safety of antenna placement performed with the use of a CT-guided stereotactic navigation system for percutaneous ablation of liver tumors and to assess the safety of high-frequency jet ventilation for target motion control. MATERIALS AND METHODS Twenty consecutive patients with malignant liver lesions for which surgical resection was contraindicated or that were not readily visible on ultrasound or not accessible by ultrasound guidance were included in the study. Patients were treated with percutaneous microwave ablation performed using a CT-guided stereotactic navigation system. High-frequency jet ventilation was used to reduce liver motion during all interventions. The accuracy of antenna placement, the number of needle readjustments required, overall safety, and the radiation doses were assessed. RESULTS Microwave ablation was completed for 20 patients (28 lesions). Performance data could be evaluated for 17 patients with 25 lesions (mean [± SD] lesion diameter, 14.9 ± 5.9 mm; mean lesion location depth, 87.5 ± 27.3 mm). The antennae were placed with a mean lateral error of 4.0 ± 2.5 mm, a depth error of 3.4 ± 3.2 mm, and a total error of 5.8 ± 3.2 mm in relation to the intended target. The median number of antenna readjustments required was zero (range, 0-1 adjustment). No major complications were related to either the procedure or the use of high-frequency jet ventilation. The mean total patient radiation dose was 957.5 ± 556.5 mGy × cm, but medical personnel were not exposed to irradiation. CONCLUSION Percutaneous microwave ablation performed with CT-guided stereotactic navigation provides sufficient accuracy and requires almost no repositioning of the needle. Therefore, it is technically feasible and applicable for safe treatments.
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20
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Beyer LP, Pregler B, Michalik K, Niessen C, Dollinger M, Müller M, Schlitt HJ, Stroszczynski C, Wiggermann P. Evaluation of a robotic system for irreversible electroporation (IRE) of malignant liver tumors: initial results. Int J Comput Assist Radiol Surg 2016; 12:803-809. [PMID: 27653615 DOI: 10.1007/s11548-016-1485-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Accepted: 09/01/2016] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Comparison of conventional CT-guided manual irreversible electroporation (IRE) of malignant liver tumors and a robot-assisted approach regarding procedural accuracy, intervention time, dose, complications, and treatment success. METHODS A retrospective single-center analysis of 40 cases of irreversible electroporation of malignant liver tumors in 35 patients (6 females, 29 males, average age 60.3 years). Nineteen of these ablation procedures were performed manually and 21 with robotic assistance. A follow-up (ultrasound, CT, and MRI) was performed after 6 weeks in all patients. RESULTS The time from the planning CT scan to the start of the ablation as well as the dose-length product were significantly lower under robotic assistance (63.5 vs. 87.4 min, [Formula: see text]; 2132 vs. 4714 mGy cm, [Formula: see text]). The procedural accuracy, measured as the deviation of the IRE probes with respect to a defined reference probe, was significantly higher using robotic guidance (2.2 vs. 3.1 mm, [Formula: see text]). There were no complications. There was one incomplete ablation in the manual group. CONCLUSION Robotic assistance for IRE of liver tumors allows for faster procedure times with higher accuracy while reducing radiation dose as compared to the manual placement of IRE probes.
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Affiliation(s)
- L P Beyer
- Department of Radiology, University Medical Center Regensburg, 93053, Regensburg, Germany.
| | - B Pregler
- Department of Radiology, University Medical Center Regensburg, 93053, Regensburg, Germany
| | - K Michalik
- Department of Radiology, University Medical Center Regensburg, 93053, Regensburg, Germany
| | - C Niessen
- Department of Radiology, University Medical Center Regensburg, 93053, Regensburg, Germany
| | - M Dollinger
- Department of Radiology, University Medical Center Regensburg, 93053, Regensburg, Germany
| | - M Müller
- Department of Internal Medicine I, University Medical Center Regensburg, Regensburg, Germany
| | - H J Schlitt
- Department of Surgery, University Medical Center Regensburg, Regensburg, Germany
| | - C Stroszczynski
- Department of Radiology, University Medical Center Regensburg, 93053, Regensburg, Germany
| | - P Wiggermann
- Department of Radiology, University Medical Center Regensburg, 93053, Regensburg, Germany
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21
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Beyer LP, Michalik K, Niessen C, Platz Batista da Silva N, Wiesinger I, Stroszczynski C, Wiggermann P. Evaluation of a Robotic Assistance-System For Percutaneous Computed Tomography-Guided (CT-Guided) Facet Joint Injection: A Phantom Study. Med Sci Monit 2016; 22:3334-9. [PMID: 27648509 PMCID: PMC5042119 DOI: 10.12659/msm.900686] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Background The aim of this study was to compare robotic assisted and freehand facet joint puncture on a phantom model in regards to time requirements and puncture accuracy. Material/Methods Forty facet joints were punctured, 20 using a robotic guidance system and 20 using a freehand procedure. Side and height of the facet joints were randomized and identical for both groups. Procedural accuracy, defined as axial and sagittal deviation, as well as the number of corrections were assessed. Procedure times for each step were documented and time requirements for pre-positioning, reconstruction, planning, and total intervention were calculated. Results Total procedure time for robotic guidance was 259±111 seconds versus 119±77 seconds for freehand procedure (p=1.0). Procedural accuracy for robotic guidance was significantly higher with 0 corrections versus 1.3 corrections for freehand procedure (p=0.02). Needle deviation in the robotics arm was 0.35±1.1 mm in the axial and 2.15±1.2 mm in the sagittal reconstruction. Conclusions Robotic assisted puncture of the facet joint allowed accurate positioning of the needle with a lower number of needle readjustments. Higher procedural accuracy was marginally offset by a slightly longer intervention time.
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Affiliation(s)
- Lukas Philipp Beyer
- Department of Radiology, University Hospital Regensburg, Regensburg, Germany
| | - Katharina Michalik
- Department of Radiology, University Hospital Regensburg, Regensburg, Germany
| | - Christoph Niessen
- Department of Radiology, University Hospital Regensburg, Regensburg, Germany
| | | | - Isabell Wiesinger
- Department of Radiology, University Hospital Regensburg, Regensburg, Germany
| | | | - Philipp Wiggermann
- Department of Radiology, University Hospital Regensburg, Regensburg, Germany
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22
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Beyer LP, Pregler B, Nießen C, Schicho A, Haimerl M, Jung EM, Stroszczynski C, Wiggermann P. Stereotactically-navigated percutaneous Irreversible Electroporation (IRE) compared to conventional IRE: a prospective trial. PeerJ 2016; 4:e2277. [PMID: 27602266 PMCID: PMC4991851 DOI: 10.7717/peerj.2277] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 07/01/2016] [Indexed: 12/18/2022] Open
Abstract
Purpose. The purpose of this study was to compare CT-navigated stereotactic IRE (SIRE) needle placement to non-navigated conventional IRE (CIRE) for percutaneous ablation of liver malignancies. Materials and Methods. A prospective trial including a total of 20 patients was conducted with 10 patients in each arm of the study. IRE procedures were guided using either CT fluoroscopy (CIRE) or a stereotactic planning and navigation system (SIRE). Primary endpoint was procedure time. Secondary endpoints were accuracy of needle placement, technical success rate, complication rate and dose-length product (DLP). Results. A total of 20 IRE procedures were performed to ablate hepatic malignancies (16 HCC, 4 liver metastases), 10 procedures in each arm. Mean time for placement of IRE electrodes in SIRE was significantly shorter with 27 ± 8 min compared to 87 ± 30 min for CIRE (p < 0.001). Accuracy of needle placement for SIRE was higher than CIRE (2.2 mm vs. 3.3 mm mean deviation, p < 0.001). The total DLP and the fluoroscopy DLP were significantly lower in SIRE compared to CIRE. Technical success rate and complication rates were equal in both arms. Conclusion. SIRE demonstrated a significant reduction of procedure length and higher accuracy compared to CIRE. Stereotactic navigation has the potential to reduce radiation dose for the patient and the radiologist without increasing the risk of complications or impaired technical success compared to CIRE.
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Affiliation(s)
- Lukas P Beyer
- Department of Radiology, University Hospital Regensburg , Regensburg , Germany
| | - Benedikt Pregler
- Department of Radiology, University Hospital Regensburg , Regensburg , Germany
| | - Christoph Nießen
- Department of Radiology, University Hospital Regensburg , Regensburg , Germany
| | - Andreas Schicho
- Department of Radiology, University Hospital Regensburg , Regensburg , Germany
| | - Michael Haimerl
- Department of Radiology, University Hospital Regensburg , Regensburg , Germany
| | - Ernst Michael Jung
- Department of Radiology, University Hospital Regensburg , Regensburg , Germany
| | | | - Philipp Wiggermann
- Department of Radiology, University Hospital Regensburg , Regensburg , Germany
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23
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Eisele RM. Advances in local ablation of malignant liver lesions. World J Gastroenterol 2016; 22:3885-3891. [PMID: 27099433 PMCID: PMC4823240 DOI: 10.3748/wjg.v22.i15.3885] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Revised: 02/23/2016] [Accepted: 03/14/2016] [Indexed: 02/06/2023] Open
Abstract
Local ablation of liver tumors matured during the recent years and is now proven to be an effective tool in the treatment of malignant liver lesions. Advances focus on the improvement of local tumor control by technical innovations, individual selection of imaging modalities, more accurate needle placement and the free choice of access to the liver. Considering data found in the current literature for conventional local ablative treatment strategies, virtually no single technology is able to demonstrate an unequivocal superiority. Hints at better performance of microwave compared to radiofrequency ablation regarding local tumor control, duration of the procedure and potentially achievable larger size of ablation areas favour the comparably more recent treatment modality; image fusion enables more patients to undergo ultrasound guided local ablation; magnetic resonance guidance may improve primary success rates in selected patients; navigation and robotics accelerate the needle placement and reduces deviation of needle positions; laparoscopic thermoablation results in larger ablation areas and therefore hypothetically better local tumor control under acceptable complication rates, but seems to be limited to patients with no, mild or moderate adhesions following earlier surgical procedures. Apart from that, most techniques appear technically feasible, albeit demanding. Which technology will in the long run become accepted, is subject to future work.
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