Automatic Segmentation of the Left and Right Ventricles of a 4D Cardiac MRI



Cardiovascular disease (CVD) is the leading cause of death in the USA, and an estimated 17.3 million people die from CVD each year according to the WHO (World Health Organization). Proper inspections of heart conditions and thorough evaluations of ventricular structures and functions are important for the management of most cardiac disorders, such as pulmonary hypertension, coronary heart disease, dysplasia and cardiomyopathies.

The cardiac contractile function can be quantified through ventricle volumes, masses and ejection fraction by segmenting the left (LV) and right (RV) ventricles from MR images. However, manual segmentation is a time-consuming and tedious process, requiring around 20 minutes per ventricle by a clinician. Although some commercial software packages such as QMASS MR (Medis, Leiden, the Netherlands), syngo Argus 4D VF (Siemens Medical Systems, Germany) and CMR42 (Circle CVI, Canada) have been made available for LV segmentation, these mostly fail on RV mainly because of the complex motion and anatomy of RV, which can be highly variable, crescent shapes, thin, and with an ill-defined border. Continue reading Automatic Segmentation of the Left and Right Ventricles of a 4D Cardiac MRI

Automatic Cephalometric X-Ray Image Analysis Solution


Cephalometric analysis is mandatory in orthodontic analysis and treatment planning, and the marking of critical landmarks during this analysis is essential as it facilitates the correct interpretation of patients’ skeletal structures and provides a complete picture for surgeons carrying out orthognathic surgery (OGS).

In clinical practice, manual marking is commonly conducted, but this is a very time-consuming and subjective process. This innovative high resolution imaging technology provides a robust, time-saving and reliable system that enables both the automatic identification of anatomical landmarks and automatic image registration to enable doctors to more efficiently analyze bone growth and speed up patient recovery. The system also allows batch processing, so that users can run data from hundreds of patients at the same time. Continue reading Automatic Cephalometric X-Ray Image Analysis Solution

Real-Time Interactive Gigapixel Image Visualization over Internet



As digital imaging technology advances, gigapixel and even terapixel super-resolution microscopic images are starting to proliferate for medical and other applications. However, due to their enormous size, the real-time interactive visualization of such super-resolution microscopic images over the Internet is difficult and existing solutions such as Microsoft HDview, GigaPan and Aperio WebScope suffer from time delays.

This powerful new technology provides a method for enabling the real-time interactive multi-resolution visualization of large-scale gigapixel microscopic images over the Internet using standard desktop PCs, laptops, and mobile devices. Indeed, its real-time system is one hundred times faster than Microsoft HDview and twenty times faster than Aperio WebScope in the interactive visualization of gigapixel images over the wired and wireless Internet. Continue reading Real-Time Interactive Gigapixel Image Visualization over Internet