What are the advantages of Ultrasound calibration?

Posted by ERS Medical on May 29th, 2021

Ultrasound calibration plays important role tocreate a freehand three-dimensional ultrasound system for image-guided intervention.The relationship between the ultrasound image coordinate system and the tracking sensor must be determined accurately via probe calibration.ultrasound calibration process as a point-to-line registration problemcalibration service providerenhancing patient safety, better performance of medical devices and compliance of safety & qualitycalibration services begins with the standardization of weights and measurements of length and distance.ultrasound image sequence and the corresponding position of optical localizer mounted to ultrasound probeto make up for the deficiency of geometry structure in arbitrary phantomdevelop a point-recognition algorithm to determine the correspondence between wires in phantom space and intersections in ultrasound image space.

The transformation which consists of translation and rotation is a fundamental and noticeable step in ultrasound image-guided interventionUltrasound calibration is the process of determining the unknown transformation from a coordinate frame such as the robot's tooltip to the US image frame and is a necessary task for any robotic or tracked US system.

Ultrasound calibration requires submillimetre-range accuracy for most applications, but it is a time-consuming and repetitive task. We provide a new framework for automatic Ultrasound calibration with robot assistance and without the need for temporal calibration. The sub millimetre accuracy requirement of Ultrasound calibration makes frequent data collections unavoidable.

Accuracy of ultrasound calibration fundamentally affects the total accuracy of this interventional guidance system ultrasound calibration procedures have been proposed based on a variety of phantom materials and geometries.ultrasound has been used independently of other technologies to analyse complex geometries or registered with other imaging modalities to aid surgical and radiotherapy planning.calibration significantly improved the calibration reproducibility and offered similar point reconstruction precision, point reconstruction accuracy, distance reconstruction accuracy, and data acquisition time with respect to the freehand cross wire phantom calibration.

Many image-guided interventions rely on tracked ultrasound where the transducer is augmented with a tracking device. The relationship between the ultrasound image coordinate system and the tracking sensor must be determined accurately via probe calibration.Ultrasound guided breast biopsy navigation system with a graphical user interface and a passive robotic needle holder is developed to increase the performance and reliability of the radiologist. Ultrasound calibration and tool tip calibration are required before using the system.