Purpose. To develop a technique to automate landmark selection for point-based interpolating transformations for nonlinear medical image registration. Materials and Methods. Interpolating transformations were calculated from homologous point landmarks on the source (image to be transformed) and target (reference image). Point landmarks are placed at regular intervals on contours of anatomical f...

We describe a novel approach for elastic matching of tomographic images of the human brain. The approach is based on a set of corresponding anatomical point landmarks and uses approximating thin-plate splines. Previous work on this topic has concentrated on using interpolation schemes which means that corresponding landmarks are exactly matched to each other. Consequently, the underlying assump...

Posterior stabilization using pedicle screw is a basic procedure in lumbar spine surgery. The success of this requires learning curve, experience as well knowledge on anatomical landmarks. Breach into vital structures or around the due to mistakes insertion may result detrimental results. This technical note proposes technique insert screws relatively easier manner and more consistent for each ...

the purpose of this study was to identify the anatomic structures of the abdominal region of cat throughcomputed tomography (ct) to be used by veterinary radiologists, clinicians and surgeons. the abdominalregion of four cats were scanned twice, with and without using contrast medium in a same position, usinghigh-resolution imaging protocol. slice intervals were 11 mm and were adjusted so that ...

Landmark-based thin-plate spline image registration is one of the most commonly used methods for non-rigid medical image registration and anatomical shape analysis. It is well known that this method does not produce a unique correspondence between two images away from the landmark locations because interchanging the role of source and target landmarks does not produce forward and reverse transf...

BACKGROUND Chronic pelvic pain (CPP) affects 15-24% of women and can have a devastating impact on quality of life. Laparoscopy is often used in the investigation, although in one third of the examinations there is no visible pathology and the women may be dismissed without further investigation. Also, the contribution of skeletal, muscular, periosteal and ligamentous tissues to CPP remains to b...

Manual cephalogram marking has long way from marking on tracing sheet to availability of commercial software's for cephalometric analysis. With the effort involved in manual marking and time consumption, it becomes imperative for modern science to envisage algorithms which could automatically locate landmarks on the cephalogram images and perform various analysis. In this work, we herby propose...

The anatomy of axillary neurovascular architechture is very important for neurosurgeon, plastic and cardiovascular surgeons, and also radiologists to aid in diagnosis, treatment and planning surgical procedure. Walsh and Willar were firstly described brachial plexus (BP) anatomy in details from 1877 (Akboru et al, 2010). After rapid development of microsurgical approaches, variations and injuri...

Identification of greater palatine foramen is of prime value for dentists and the oral and maxillofacial surgeons. The objective of present study was to radiologically localize greater palatine foramen with multiple anatomical landmarks. All Computer Tomography scans of individuals who have undergone paranasal sinus evaluation were obtained from the Department of Radiology, Azeezia Institute of...

Since the development of radiofrequency catheter ablation for the treatment of atrial fibrillation, electrophysiology laboratories have experienced a significant rise in the number of transseptal catheterization procedures. Traditionally, the procedure requires the presence of a interventional cardiologist who carries out transseptal catheterization following arterial puncture and placement of ...