MotionLock™ Real-Time Patient Movement Compensation: How Is It Different?

Prostate cancer is the second-leading cause of death among men, impacting one in six men during their lifetimes.¹ Transrectal ultrasound (TRUS)-guided biopsies are standard for patients with suspected prostate cancer.² When combined with MRI, TRUS-MRI Fusion Biopsy significantly helps improve detection of clinically-significant cancer.¹ ²

MRI-ultrasound fusion biopsy relies on the use of pre-procedural MRIs during live ultrasound. The registration between the MRI and the ultrasound in real time is essential for accurate results, creating a roadmap to improved cancer detection. Registered MRI data aligned with live ultrasound results in fused 3D images clinicians can use to target suspicious areas with greater accuracy.²

But patient movement during MRI-TRUS fusion biopsy can disrupt registration between the preprocedural MRI and real-time ultrasound images, causing targeting errors that may result in missing clinically significant cancer. An MRI-fusion platform must address patient movement to ensure that it can deliver on its intended purpose of accurate targeting of regions of interest identified in the MRI.

Solving for Patient Movement

Patient movement during procedures causes targeting errors during fusion-guided prostate biopsy, which has to be corrected manually.³ An automated approach that harnesses real-time motion compensation algorithms can help prevent movement from disrupting workflows and compromising biopsy results.

• Real-time tracking and motion-correction processes ensure that biopsies are efficient while reducing patient discomfort

• Automatic, continuous correction keeps live ultrasound aligned with registered images during needle guidance without constant manual re-registration after every movement

With an intuitive, automatic, and adaptive system, practices can simplify MRI-fusion workflows without the need for manual updates, reduce the potential for errors if manual re-registration is not done, and enable faster, easier workflows and improved patient experiences and outcomes.

Continuous, Real-Time Tracking, Measuring, and Marking with Navigo

Patient movement during TRUS procedures is inevitable. The procedure isn’t especially comfortable for patients; having to stop and start again each time places added pressure on urologists who are trying to get procedures completed quickly without compromising accuracy.

UC-CARE’s Navigo is the only real-time 4D fusion navigation system that automatically accounts for patient movement during TRUS procedures, while allowing greater ease of use and comprehensive workflow integration. Navigo 4D fusion integrates seamlessly with your existing ultrasound equipment for easy adoption and integration with existing workflows.

• Navigo’s proprietary MotionLock™ technology separately tracks the probe and the patient, recognizes movement and updates navigation in real time without requiring operators to stop procedures, press to scan, or manually reposition registrations.

• Real-time needle tracking ensures that the Navigo always knows where the needle is during procedures.

• Exclusive SmartSync™ technology automatically adapts, contours, measures, and marks, allowing for 100% biopsy documentation with integrated 3D treatment planning.

When used in conjunction with the SmartBx Biopsy management system, which preserves specimen integrity from needle to slide and maintains core orientation, you can increase ihigh-grade early cancer detection up to 25%.

For organizations ready to move towards in-house MRI-fusion, UC-CARE is here to help guide you towards the best possible solution. Schedule a call to learn more.

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Sources

1. Xu S, Kruecker J, Turkbey B, et al. Real-time MRI-TRUS fusion for guidance of targeted prostate biopsies. Comput Aided Surg. 2008;13(5):255-264. doi:10.3109/10929080802364645.

2. Kongnyuy M, George AK, Rastinehad AR, Pinto PA. Magnetic resonance imaging-ultrasound fusion-guided prostate biopsy: review of technology, techniques, and outcomes. Curr Urol Rep. 2016;17(4):32. doi:10.1007/s11934-016-0589-z.

3. Gillies D., et al., “Real-Time Registration of 3D to 2D Ultrasound Images for Image-Guided Prostate Biopsy,” Medical Physics 44, no. 9 (2017): 4708–23, https://doi.org/10.1002/mp.12441