scholarly journals Minimally invasive photoacoustic imaging for device guidance and monitoring of radiofrequency ablation

2020 ◽  
Author(s):  
Francis Kalloor Joseph ◽  
Hindrik Kruit ◽  
Elina Rašcevska ◽  
Srirang Manohar
Keyword(s):  
Radiofrequency Ablation ◽  
Minimally Invasive ◽  
Photoacoustic Imaging ◽  
Device Guidance

A CT-free protocol to treat osteoid osteoma of the hip region in childhood and adolescence by percutaneous drilling and by hip arthroscopy

2021 ◽  
pp. 112070002199626
Author(s):  
Oliver Eberhardt ◽  
Thekla von Kalle ◽  
Rebecca Matthis ◽  
Richard Doepner ◽  
Thomas Wirth ◽  
...  
Keyword(s):  
Radiofrequency Ablation ◽  
Minimally Invasive ◽  
Hip Joint ◽  
Hip Arthroscopy ◽  
Standard Form ◽  
Childhood And Adolescence ◽  
Ct Guided ◽  
Contrast Enhanced ◽  
Mri Guided ◽  
Mri Diagnostics

Introduction: It is often difficult to clinically and radiologically diagnose intra-articular osteoid osteomas and osteoid osteomas of the hip joint. Treatment can also be difficult due to complex locational relationships. CT-guided radiofrequency ablation is currently the standard form of treatment. In this paper we report on a minimally-invasive concept for treating osteoid osteomas near the hip joint in children and adolescents which does not involve using computed tomography. Material and method: 10 patients with an average age of 12.1 years underwent treatment for osteoid osteomas in the hip joint region. The diagnosis was made using a contrast-enhanced MRI. The osteoid osteomas were marked percutaneously using x-ray and MRI guidance. MRI-guided drilling/curettage was performed in 4 cases and arthroscopic resection in 6 cases. Results: All lesions were successfully treated using the MRI-guided method. All patients were free of pain after the treatment. There was no instance of recurrence during the follow-up period, which averaged 10 months. The effective dose for marking the lesion was between 0.0186 mSv and 0.342 mSV (mean 0.084 mSV). Conclusions: Our MRI diagnostics protocol, the MRI-guided drilling and the minimally invasive hip arthroscopy represent an alternative to CT-guided radiofrequency ablation in the treatment of osteoid osteomas. Radiation exposure can thereby be significantly reduced. Hip arthroscopy can also be used to treat secondary pathologies such as femoroacetabular impingement.

scholarly journals Spectroscopic photoacoustic imaging of radiofrequency ablation in the left atrium

2018 ◽  
Vol 9 (3) ◽  
pp. 1309 ◽  
Author(s):  
Sophinese Iskander-Rizk ◽  
Pieter Kruizinga ◽  
Antonius F. W. van der Steen ◽  
Gijs van Soest
Keyword(s):  
Radiofrequency Ablation ◽  
Left Atrium ◽  
Photoacoustic Imaging

scholarly journals Comparison of modified MAZE with minimally invasive monopolar ablation and traditional bipolar radiofrequency ablation in the treatment of atrial fibrillation

2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Wei Si ◽  
Sijia Yang ◽  
Linhui Pan ◽  
Chengchegn Li ◽  
Liang Ma
Keyword(s):  
Quality Of Life ◽  
Atrial Fibrillation ◽  
Radiofrequency Ablation ◽  
Minimally Invasive ◽  
Sinus Rhythm ◽  
Ablation Rate ◽  
Atrial Fibrillation Ablation ◽  
Bipolar Radiofrequency ◽  
Postoperative Quality

Abstract Background and aim of the study Atrial fibrillation (AF) is the most common atrial arrhythmia. Our aim was to compare the outcomes of atrial fibrillation treatment with original modified minimally invasive MAZE using monopolar radiofrequency ablation (mi-MAZE) and open surgery MAZE using bipolar radiofrequency ablation (os-MAZE). Methods We searched the associated patients’ information on the medical record system of the First Affiliated Hospital, School of Medicine, Zhejiang University. Statistical Package for Social Sciences (SPSS) was used to analyse the data. The primary outcome is the atrial fibrillation ablation rate 3 months, 6 months, 12 months after operation. And secondary outcome is the postoperative quality of life. Results The mi-MAZE group included 42 patients and the os-MAZE group had 65 patients. Three months after surgery, we found that 31 patients (77.5%) in the mi-MAZE group were sinus rhythm and 44 (71.0%) recovered sinus rhythm in the os-MAZE group. We followed up these patients on the phone or in person and scored them on the SF-36 scale. The results were found to be 120.2 ± 8.10 vs 110.6 ± 6.58 (mi-MAZE vs os-MAZE, P < 0.001). Conclusions There was no significant difference of atrial fibrillation ablation rate (sinus rhythm recovery rate) between the mi-MAZE group and the os-MAZE group. The postoperative quality of life in mi-MAZE group was higher than that in os-MAZE group.

Minimally Invasive Radiofrequency Ablation of Lone Atrial Fibrillation by Monolateral Right Minithoracotomy: Operative and Early Follow-Up Results

2010 ◽  
Vol 90 (1) ◽  
pp. 161-167 ◽  
Author(s):  
Giuseppe Speziale ◽  
Raffaele Bonifazi ◽  
Giuseppe Nasso ◽  
Francesco Bartolomucci ◽  
Pasquale Caldarola ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Radiofrequency Ablation ◽  
Minimally Invasive ◽  
Lone Atrial Fibrillation
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