Virtual Navigator Registration Procedure for Transcranial Application

Forzoni, Leonardo; D’Onofrio, Sara; Beni, Stefano De; Laganà, Maria Marcella; Školoudík, David; Baselli, Giuseppe; Cecconi, Pietro

doi:10.2316/p.2012.764-158

Cited by 3 publications

(5 citation statements)

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“…Then the procedure of image registration was performed, which is the process of transforming different sets of data into one coordinated system. This procedure has been described in detail elsewhere . In brief, the patient's head position was first registered by defining five to six common reference points with the tracking system, which typically led to a nearly complete matching of the patient's head position (corresponding to the live TCS imaging coordinates) with the MRI data set.…”

Section: Methodsmentioning

confidence: 99%

“…Although TCS proved reliable and safe for intra‐ and postoperative location of DBS lead, the TCS images may be difficult to interpret by physicians not familiar with ultrasound imaging. Meanwhile, ultrasound systems are available that employ a real‐time fusion technology between previously acquired CT or MRI data and an ultrasound examination . In the head region, MRI–ultrasound fusion imaging has been reported for assessment of intracranial veins and orbital structures as well as for neuronavigation in brain tumor surgery .…”

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confidence: 99%

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Magnetic resonance-transcranial ultrasound fusion imaging: A novel tool for brain electrode location

et al. 2015

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Section: Methodsmentioning

confidence: 99%

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confidence: 99%

Magnetic resonance-transcranial ultrasound fusion imaging: A novel tool for brain electrode location

et al. 2015

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“…Pilot studies demonstrated a very high accuracy of fusion images, with an average cranio-caudal error of 0.5 (range, 0 -0.7) cm and an average lateral shift of 0.1 (0 -0.5) cm [50]. The mean time for the complete TCS examination including the fusion imaging procedure did not exceed 40 minutes.…”

mentioning

confidence: 87%

“…by an electromagnetic system, composed of a transmitter and a small receiver, mounted on the transducer [50]. Pilot studies demonstrated a very high accuracy of fusion images, with an average cranio-caudal error of 0.5 (range, 0 -0.7) cm and an average lateral shift of 0.1 (0 -0.5) cm [50].…”

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confidence: 99%

Transcranial Sonography (TCS) of Brain Parenchyma in Movement Disorders: Quality Standards, Diagnostic Applications and Novel Technologies

Walter

Školoudík

2014

Ultraschall in Med

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Transcranial B-mode sonography (TCS) of brain parenchyma is being increasingly used as a diagnostic tool in movement disorders. Compared to other neuroimaging modalities such as magnetic resonance imaging (MRI) and computed tomography, TCS can be performed today with portable machines and has the advantages of noninvasiveness and high resistance to movement artifacts. In distinct brain disorders TCS detects abnormalities that cannot be visualized or can only be visualized with significant effort with other imaging methods. In the field of movement disorders, TCS has been established mainly as a tool for the early and differential diagnosis of Parkinson?s disease. The postoperative position control of deep brain stimulation electrodes, especially in the subthalamic nucleus, can reliably and safely be performed with TCS.?The present update review summarizes the current methodological standards and defines quality criteria of adequate TCS imaging and assessment of diagnostically relevant deep brain structures such as substantia nigra, brainstem raphe, basal ganglia and ventricles. Finally, an overview is given on recent technological advances including TCS-MRI fusion imaging and upcoming technologies of digitized image analysis aiming at a more investigator-independent assessment of deep brain structures on TCS.

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“…transesophageal probe shaft diameter, transrectal probe body dimension and to the application of soft acoustic lenses that cover the probes to avoid patient's body contact with transducer hard plastic parts [20,21,22].…”

Section: Introductionmentioning

confidence: 99%

Motion analysis and eye tracking technologies applied to portable ultrasound systems user interfaces evaluation

Andreoni

Mazzola

Zambarbieri

et al. 2013

2013 International Conference on Computer Medical Applications (ICCMA)

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The present work describes the ergonomics and usability preliminary tests regarding the human upper limb kinematics and cognitive evaluation of two diagnostic portable ultrasound scanners. The tests were performed by two sonographers (an expert one and a novice one) on one subject in abdominal and vascular clinical applications. The two portable systems had different user interfaces: one system had a classic Software keys interactive Menu, placed in the lower part of the screen, with toggles and buttons for the activation and adjustment of the functions, then physical qwerty keyboard and control panel. The other system had a touch screen integrated in the control panel with an interactive user interface and reduced number of physical buttons. Comparisons between the two systems considering the two sonographer's use are provided. Motion control and eye tracking scan path results will be presented and discussed for both users on both systems

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Virtual Navigator Registration Procedure for Transcranial Application

Cited by 3 publications

References 0 publications

Magnetic resonance-transcranial ultrasound fusion imaging: A novel tool for brain electrode location

Magnetic resonance-transcranial ultrasound fusion imaging: A novel tool for brain electrode location

Transcranial Sonography (TCS) of Brain Parenchyma in Movement Disorders: Quality Standards, Diagnostic Applications and Novel Technologies

Motion analysis and eye tracking technologies applied to portable ultrasound systems user interfaces evaluation

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