Objective: To establish the impact of the imaging modality, registration method and use of intraoperative computed tomography (CT) scan on the accuracy of the ROSA® stereotactic robot.
Methods: Using a dedicated phantom device, we measured the accuracy of the stereotactic robot for 20 targets as a function of the registration method (frameless, FL, or frame-based, FB) and the reference imaging modality (3T magnetic resonance imaging, MRI, CT scanner or flat-panel CT, fpCT). We performed a retrospective study of the accuracy of the first 26 FB and 31 FL robotized stereotactic surgeries performed in our department.
Results: In a phantom study, the mean target accuracy was 1.59 mm for 3T MRI-guided FL surgery, 0.3 mm for fpCT-guided FL surgery and 0.3 mm for CT-guided FB surgery. In our retrospective series, the mean accuracy was 0.81 mm for FB stereotactic surgery, 1.22 mm for our 24 stereotactic surgery procedures with FL (surface recognition) registration and 0.7 mm for our 7 stereotactic surgery procedures with FL fiducial marker registration. Intraoperative fpCT fully corrected all the registration errors.
Conclusions: The ROSA stereotactic robot is highly accurate. Robotized FB stereotactic surgery is more accurate than robotized FL stereotactic surgery.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1159/000362936 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Voxel-Based Dosimetry Predicts Local Tumor Progression Post 90Y Radiation Segmentectomy of Colorectal Liver Metastases.
Clin Nucl Med
November 2024
From the Interventional Oncology/Radiology Service, Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY.
Background: Radiation segmentectomy (RS) is an alternative potential local curative treatment for selected colorectal liver metastases (CLMs) not amenable to ablation or limited resection.
Purpose: The aim of this study was to evaluate the dosimetric response of low volume CLMs to RS in heavily pretreated patients who are not candidates for resection or percutaneous ablation.
Patients And Methods: This single-center retrospective study evaluated CLMs patients treated with RS (prescribed tumor dose >190 Gy) from 2015 to 2023.
Metastasis-directed therapy in oligometastatic and oligoprogressive renal cell carcinoma.
Curr Opin Urol
December 2024
Division of Urologic Oncology.
Purpose Of Review: This review addresses the evolving role of metastasis-directed therapy (MDT) in the management of oligometastatic and oligoprogressive renal cell carcinoma (RCC). With advances in both surgical techniques and stereotactic ablative radiotherapy (SABR), it is timely to explore how MDT can improve patient outcomes in these distinct disease states. The review highlights the potential of MDT to delay systemic therapy and improve quality of life while noting the lack of randomized clinical trial data guiding its use.
View Article and Find Full Text PDFPreoperative versus postoperative stereotactic radiosurgery for brain metastases: a systematic review and meta-analysis of comparative studies.
Neurosurg Rev
January 2025
Department of Neurological Surgery, University of Virginia, Charlottesville, USA.
Resection is often the primary treatment for large brain tumors but is less practical for multiple brain metastases (BM). Current guidelines recommend stereotactic radiosurgery (SRS) for untreated BMs or following the surgical removal of a solitary BM to reduce the risk of local tumor recurrence. Preoperative SRS (pre-SRS) shows promise with fewer complications and more precise targeting, but it lacks tissue diagnosis and may hinder wound healing.
View Article and Find Full Text PDFEffects of Institutional Experience on Plan Quality in Stereotactic Radiotherapy Using HyperArc for Brain Metastases.
In Vivo
December 2024
Department of Radiation Oncology, Osaka International Cancer Institute, Osaka, Japan.
Background/aim: HyperArc (HA) is an automated planning technique enabling single-isocenter brain stereotactic radiotherapy (SRT); however, dosimetric outcomes may be influenced by the planner's expertise. This study aimed to assess the impact of institutional experience on the plan quality of HA-SRT for both single and multiple brain metastases.
Materials And Methods: Twenty patients who underwent HA-SRT for single metastasis between 2020 and 2021 comprised the earlier group, while those treated between 2022 and 2024 constituted the later group.
Stereotactic navigation for traumatic parafalcine subdural hematoma evacuation: illustrative cases.
J Neurosurg Case Lessons
December 2024
Department of Neurosurgery, Louisiana State University Health Sciences Center, Shreveport, Louisiana.
Background: Parafalcine subdural hematomas (pSDHs) are a subtype of subdural hematoma (SDH) that occur most frequently in older patients after blunt trauma. The literature primarily describes two clinical courses for patients with pSDH: those who are neurologically intact with stable examinations and imaging and those with focal deficits, with or without hematoma progression. Surgical management is undoubtedly required for the latter group; however, there are no evidence-based guidelines specifically for pSDH.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!