Parameter estimation of brain tumors using intraoperative thermal imaging based on artificial tactile sensing in conjunction with artificial neural network

Sadeghi-Goughari, Moslem; Mojra, Afsaneh; Sadeghi, Samira

doi:10.1088/0022-3727/49/7/075404

Cited by 34 publications

(20 citation statements)

References 28 publications

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“…Brain tumours are the second most common paediatric cancer, with more than 4000 cases diagnosed each year in children and adolescents . Despite all the medical advances achieved in the field of brain surgery in recent decades, the survival rate of patients with brain tumours has not improved much.…”

Section: Introductionmentioning

confidence: 99%

“…Minimally invasive neurosurgery is colloquially considered to be brain surgery through a small opening in the scalp or the skull bone. However, the goal of this surgical practice is to implement MIS to optimize the brain tumour resection with the least possible effect on the brain tissue around the abnormality being dealt with . For minimally invasive neurosurgery, advanced surgical techniques have been developed such as conformal radiation, laser hyperthermia, focused ultrasound and image‐guided surgery including intraoperative imaging .…”

Section: Introductionmentioning

confidence: 99%

“…Aside from iMRI, there are reports of intraoperative imaging utilizing CT and ultrasound in attempts to acquire real‐time data on brain tumours affected by brain shift. Despite all advances in image‐guided neurosurgery, intraoperative imaging techniques such as iMRI and iCT are classified as invasive methods since patients are exposed to the harmful impacts of magnetic fields and x‐rays . Furthermore, they are expensive and time‐consuming because each scan takes up to 20 min .…”

Section: Introductionmentioning

confidence: 99%

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An experimental and numerical study on tactile neuroimaging: A novel minimally invasive technique for intraoperative brain imaging

Sadeghi-Goughari

Qian

Jeon

et al. 2018

Robotics Computer Surgery

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BackgroundThe success of tumor neurosurgery is highly dependent on the ability to accurately localize the operative target, which may be shifted during the operation. Performing an intraoperative brain imaging is crucial in minimally invasive neurosurgery to detect the effect of brain shift on the tumor's location, and to maximize the efficiency of tumor resection. MethodThe major objective of this research is to introduce the tactile neuroimaging as a novel minimally invasive technique for intraoperative brain imaging. To investigate the feasibility of the proposed method, an experimental and numerical study was first performed on silicone phantoms mimicking the brain tissue with a tumor. Then the study was extended to a clinical model with the meningioma tumor. ResultsThe stress distribution on the brain surface has high potential to intraoperatively localize the tumor. ConclusionResults suggest that tactile neuroimaging can be used to provide a non-invasive, and real-time intraoperative data on tumor's features.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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An experimental and numerical study on tactile neuroimaging: A novel minimally invasive technique for intraoperative brain imaging

Sadeghi-Goughari

Qian

Jeon

et al. 2018

Robotics Computer Surgery

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“…It has been reported that malignant tissues are several times stiffer than normal ones [1]. In clinical diagnosis, palpation is the oldest, but still the most commonly used technique by physicians [2,3] to determine the stiffness of target regions. While palpation is simple, it is just a qualitative assessment and the results are widely open to user interpretation.…”

Section: Introductionmentioning

confidence: 99%

The Design And Validations Of The Ultrasonic Tactile Sensor

Qian¹,

Kwon²

2018

Progress in Canadian Mechanical Engineering

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“…In their studies, a brain tumor was considered to have a 3.3°C temperature rise relative to the normal surrounding tissue. In another study, Sadeghi Goughari et al considered a brain tumor as a heat source that generated heat by a constant rate equal to 0.5 W.…”

Section: Introductionmentioning

confidence: 99%

A novel approach for early evaluation of orthodontic process by a numerical thermomechanical analysis

Heidary

Mojra

Shirazi

et al. 2017

Numer Methods Biomed Eng

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The main objective of this paper is to propose a novel method that provides an opportunity to evaluate an orthodontic process at early phase of the treatment. This was accomplished by finding out a correlation between the applied orthodontic force and thermal variations in the tooth structure. To this end, geometry of the human tooth surrounded by the connective soft tissue called the periodontal ligament and the bone was constructed by employing dental CT scan images of a specific case. The periodontal ligament was modeled by finite strain viscoelastic model through a nonlinear stress-strain relation (hyperelasticity) and nonlinear stress-time relation (viscoelasticity). The tooth structure was loaded by a lateral force with 15 different quantities applied to 20 different locations, along the midedge of the tooth crown. The resultant compressive stress in the periodontal ligament was considered as the cause of elevated cell activity that was modeled by a transient heat flux in the thermal analysis. The heat flux value was estimated by conducting an experiment on a pair of rats. The numerical results showed that by applying an orthodontic force to the tooth structure, a significant temperature rise was observed. By measuring the temperature rise, the orthodontic process can be evaluated. KEYWORDS finite element method, mechanical stress, orthodontic loading, thermal analysis, viscohyperelastic behavior

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Parameter estimation of brain tumors using intraoperative thermal imaging based on artificial tactile sensing in conjunction with artificial neural network

Cited by 34 publications

References 28 publications

An experimental and numerical study on tactile neuroimaging: A novel minimally invasive technique for intraoperative brain imaging

An experimental and numerical study on tactile neuroimaging: A novel minimally invasive technique for intraoperative brain imaging

The Design And Validations Of The Ultrasonic Tactile Sensor

A novel approach for early evaluation of orthodontic process by a numerical thermomechanical analysis

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