C-RAD Sentinel Laser | Accessories | IGRT Solutions Overview

Motion Detection

Would you let your surgeon operate blindfolded? Like a surgeon relies on his eyes, radiation oncology clinicians rely on motion-detection tools to monitor the patient during beam delivery. Remove the blindfold with the C-RAD Sentinel. The C-RAD Sentinel, with the cMotion module, offers real-time sub-millimeter intra-fractional motion detection during treatment delivery, ensuring patient safety and increasing accuracy.

The C- RAD Sentinel qualifies for reimbursement based on CPT Code 0197T (Intrafraction localization and tracking of target or patient motion during delivery of radiation therapy [e.g., 3D positional tracking, gating, 3D surface tracking], each fraction of treatment). Please contact us to learn more about how you can apply for this.

Click here to view the C-RAD Sentinel 0197T reimbursement code press release.

cMotion Key Benefits

Improves patient safety:
The C-RAD Sentinel continuous laser scanning system tracks the patient’s movements with sub-millimeter accuracy during the complete treatment delivery. If the patient moves during the treatment, the SENTINEL immediately sends a warning to the therapist through the console.
Increases dose delivery accuracy:
With the increased of dose delivery through IMRT and IGRT practices, the C-RAD Sentinel can also help you increase treatment delivery accuracy to avoid damaging healthy tissue and under treat the prescribed area.
No additional radiation to your patient:
The C-RAD Sentinel does not subject the patient to any additional ionizing radiation during the set up procedure, allowing the clinician to be with the patient during the entire set up process. The result is greater patient comfort and less time on the treatment couch.
Digitizes your patient position records:
The C-RAD Sentinel patient position recording system saves all patient positioning information automatically after each treatment delivery and archives the data for easy future retrieval.
Does not require markers:
The C- RAD Sentinel eliminates the need for markers through daily validation of the patient position.
CPT Code 0197T:
The C- RAD Sentinel qualifies for reimbursement based on CPT Code 0197T(Intrafraction localization and tracking of target or patient motion during delivery of radiation therapy [e.g., 3D positional tracking, gating, 3D surface tracking], each fraction of treatment)

cMotion PROCESS

Real-Time infractional motion detection is EASY using C-RAD

cMotion

Rapid Patient Postioning

The C-RAD Sentinel system brings time savings through a reduction in the patient set up process. The net result is less manual effort, increased accuracy, and increased patient throughput saving you up to five minutes per patient. (Medical Physics Journal, May 2008)

cPosition Key Benefits

Rapid Patient Set-Up Time
Patient positioning is now easier with the C-RAD Sentinel laser patient positioning device. The C-RAD Sentinel eliminates the traditional manual set up procedure, utilizing its advanced laser camera system.
Sub-Millimeter Patient Positioning Accuracy
With the use of advanced treatment protocols comes the responsibility of greater patient positioning accuracy throughout the radiation therapy process. The C-RAD Sentinel provides this needed sub-millimeter accuracy.
Markers No Longer Required
The C- RAD Sentinel eliminates the need for markers through daily validation of the patient position.
No Additional Radiation Exposure
The C-RAD Sentinel does not subject the patient to any additional ionizing radiation during the set up procedure, allowing the clinician to be with the patient during the entire set up process. The result is greater patient comfort and less time on the treatment couch.
Intuitive User Interface
A large flat screen monitor offers the user specific information about the patient position and motion, integrating seamlessly into daily work flow. The C-RAD Sentinel software automatically calls up patient information from your existing record and verify system.

cPosition PROCESS

Rapid Patient Positioning is EASY using C-RAD

cPosition

Overview

What could you do with five minutes time savings per patient, per day? C-RAD Sentinel is an advanced laser/camera based system that helps you more accurately set up the patient in less time, and track patient motion during treatment. The C-RAD Sentinel basic platform is based on advanced laser technology with multi-purpose software modules covering different tasks in the treatment procedure. The different software modules are seamlessly integrated with other systems in the clinic. C-RAD Sentinel is designed to provide a high level of ease of use combined with improved accuracy.

cPosition
By advanced surface registration algorithms the actual patient position is compared to a predefined reference position/image. With a click of a button the results are obtained and the need for manual markings on the patient and for manual handling to bring the patient into the defined position is eliminated. With interface to major accelerator vendors the suggested patient position is transferred to the respective couch control system and fast and accurate alignment is achieved.

cMotion
During the treatment delivery phase it is critical that the patient does not change position and that the treatment is delivered in accordance with the plan. cMotion monitors the movement of the patient during treatment delivery and automatically warns if the patient moves outside the allowed tolerances. This eliminates the need for visual monitoring by the staff, adding convenience as well as safety.

C-RAD Sentinel Provides:

Connectivity - Seamless integration with other systems in the RT clinic
Accuracy - High level of accuracy based on state-of-the-art laser technology
Ease of Use - No need for manual marking or maneuvering of the patient enables timesaving in the patient positioning procedure and increases patient throughput
Confidence - The system confirms correct positioning and monitors movement

How it Works

C-RAD Sentinel hardware consists of a single scanner unit containing the laser and camera, mounted in the ceiling in front of the gantry. The scanner is connected to the PC running the c4D software. During patient surface acquisition, a laser line is swept along the patient while the camera records a number of images. From the data acquired, a complete 3D surface of the patient can be reconstructed using laser line triangulation.

For patient positioning, the acquired surface is captured in a few seconds and can contain several hundred contours. For motion detection, the number of contours is typically lowered so that the desired frame rate is achieved. The system is capable of acquiring more than 50 contours per second.

Advances in IMRT, IGRT, and other treatment delivery protocols have enabled greater levels of accuracy and dose. But these advancements have also created the demand for higher accuracy in monitoring the patient position and movements.

The Sentinel system does not require any markers to be placed on the patient or the couch, and doesn’t subject the patient to any additional radiation. This also means that the personnel can stay in the treatment room during the whole set up procedure.

Technical Specs

Specifications

Physical Dimensions:

Size: 700x200x200 mm
Weight: 8 kg

Power:

Input Voltage: 100-240 VAC
Frequency: 47-63 Hz
Power Consumption: 1.35 A

Laser:

Power: <1 mW according to IEC-60825-1
Wavelength: 635-690 nm

Interfaces:

DICOM: Import of patient data and reference surfaces
Linac Interfaces: Synchronization of patient selection and couch control

Performance:

Scan Volume: 800x1300x700 mm
Max. No. of 3D Data Points: 360 000
Measurement Resolution: 0.2 mm in Y- and Z- direction, 0.5 mm in X- direction
Measurement Repeatability: 0.05 mm
Long Term Stability: Better than 0.5 mm
Scan Speed: >30 contours per second. Typically 1-2s for a 40 cm scan
Positioning Accuracy (rigid body): Within 1 mm

Software Requirements:

Operating System: Windows XP SP2
Computer for Sentinel c4D Server/ Sentinel c4D Stand Alone Install: 512 MB RAM, SXGA graphics, min 20
GB available space on the hard disk
Computer for Sentinel c4D Client: Minimum requirements: 2GHz, 512 MB RAM, SVGA graphics

C-RAD AB reserves the right to change this document at any time without notice and disclaims liability for editorial, pictoral, or typographical errors.

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