Research Line
Designing reduction procedure of zygoma fracture using CT atlas for navigation system

We are developing a new navigation system to guide craniomaxillofacial (CMF) surgeon in operation room. When a prosthesis is placed into the patient body navigation system could evaluate the position of prosthesis. Surgeon could be able to compare the position of prosthesis with preplanning. In the field of Computer-Assisted Surgery (CAS) in CMF, we are working on a...


Lung tumors localization in Bronchial Phantom by EBUS/CT registration in Image Guided Bronchoscopy systems

Early detection and treatment of lung cancer with a curative therapy for patients in early stages of disease is becoming increasingly important. Intraoperative bronchoscopy is a live invasive procedure to diagnose suspected malignant pulmonary lesions while complementary Endobronchial ultrasound (EBUS), which provides live guidance for localizing extraluminal sites, has become a standard procedure for cancer staging bronchoscopy. In...


Non-rigid hybrid registration of photo-acoustic and MR images to calculate brain shift in sparse ‎space.

In neurosurgery, the quality and safety of the brain tumor resection affected by intra-operative tissue deformation, called brain shift. Brain shift is a dynamic complex phenomenon which happens after performing a craniotomy and invalidates pre-operative image of patients. Brain shift compensation methods are based on updating pre-operative image according to the tissue deformation using intra-operative imaging. In...


Design and evaluation of a laboratory prototype photoacoustic imaging system for imaging of Glioma in a brain phantom

In this project, we are working on design and evaluation of an LED-based photoacoustic system. Photoacoustic imaging may be considered as a promising imaging modality may be able to delineate the vascular-rich glioma margins at different depths of the resection cavity during surgery for safe maximal resection of glioma. This study illustrates LED-based photoacoustic imaging could be...


Evaluation and optimization of photoacoustic imaging geometry for breast imaging: a phantom study

Common medical imaging to breast cancer screening, and diagnosis include mammography, ultrasound and magnetic resonance imaging. Each of these imaging methods has disadvantages that make it not considered as a routine breast cancer screening method. Photoacoustic imaging (PAI) is a relatively new imaging technique that combines high contrast of optical imaging with high spatial resolution of ultrasonic...


Design and implementation of a needle navigation system based on the array of magnetic sensors in sono-guided spine interventions

Precise guidance and placement of the needle tip at the target point, is one of the important procedures in a variety of medical needle intervention. Nowadays, C-arm and X-Ray imaging is the usual methods, which introduces high doses of radiation to the patient and especially doctors and technicians. Recently, many attempts have been made to open the...


Design and implementation of a needle navigation system using ultrasound image and magnetic sensors fusion in the ultrasound based spine needle interventions

Precise guidance and placement of the needle tip at the target point, is one of the important procedures in a variety of medical needle intervention. Among these, facet joint and epidural injections are among the most obvious applications due to the proximity of the target to the nerve, which highlights the importance of accuracy in this procedures....