The term perfusion imaging refers, traditionally, to the use of a medical imaging modality for measurements of tissue capillary blood flow [1], although it has become increasingly common to include other characteristics of tissue microcirculation and microvasculature in the perfusion imaging framework. In quantitative approaches, the regional perfusion is normally visualized as a parametric map...

Magnetic resonance imaging (MRI) uses a constant magnetic field and radio waves, a non-invasive method for examining tissues, organs and the skeletal system. Advantages and disadvantages of MRI are not fully understood; however, it has been commonly used in the diagnosis of skeleton and bone diseases (such as disk and spinal disorders, joint disorders (arthritis), bone tumours and tissues...

From the *Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; †Division of Cardiology, St. Michael’s Hospital, University of Toronto, Toronto, Ontario, Canada; ‡Department of Medical Imaging and Cardiology, Toronto General Hospital, University of Toronto, Toronto, Ontario, Canada; §Division of Cardiac Surgery, St. Michael’s Hospital, University of Toronto, Toronto, Ontario, Ca...

Using Tunable Nanoscale Confinement to Image and Manipulate DNA Daniel Berard, Jason S. Leith, Francois Michaud, Sabrina R. Leslie Department of Physics, McGill University, Canada [email protected] We present a modular microscopy device that transforms a basic inverted fluorescence microscope into a versatile single-molecule imaging and diagnostic system, with applications in the biome...

W. Y. Hahn, E. M. Hecht, B. Friedman, V. S. Lee NYU Medical Center, New York, NY, United States SYNOPSIS: Magnetic resonance angiography of the calf and pedal arteries is challenging due to the issues of venous contamination and small vessel size. Therefore, contrast-enhanced MRA is typically supplemented with TOF imaging below the knee. In this study, we compared the conventional TOF sequence ...

Introduction: Teaching styles and methods have been constantly changing in the recent years. In the 1980s and 90s, the world was introduced to various developed devices, such as smart boards and early generation smart phones that had an immediate innovative effect on education. These advancements has resulted in a considerable improvement in the current educational techniques. The innovations i...

Diagnostic techniques in cardiology require complex image analysis of single images and image sequences obtained by a variety of medical imaging modalities such as ECG-gated MR, CT, and ultrasound. Cardiac motion estimation provides useful information about cardiac function. In this work, we present a novel brightness-based algorithm for computation of optical flow. The advantage of brightness-...

A continuous maximum flow problem finds the largest t such that div v = t F (x, y) is possible with a capacity constraint ‖(v1, v2)‖ ≤ c(x, y). The dual problem finds a minimum cut ∂S which is filled to capacity by the flow through it. This model problem has found increasing application in medical imaging, and the theory continues to develop (along with new algorithms). Remaining difficulties i...

Nuclear magnetic resonance (NMR) is a well-established analytical technique in chemistry. The ability to precisely control the nuclear spin interactions that give rise to the NMR phenomenon has led to revolutionary advances in fields as diverse as protein structure determination and medical diagnosis. Here, we discuss methods for increasing the sensitivity of magnetic resonance experiments, mov...