• Introduction to MR Physics Part 6c

    Introduction to MR Physics Part 6c

    Part 6c of a six part series covering the fundamentals of magnetic resonance imaging physics. This final section covers a recap of the previous five sessions and covers advanced imaging sequences and their application. Click here to view Part 6a, Part 6b or Part 1a. Terms covered in Part 6: Cardiac CINE Turbo Spin Echo (Fast Spin Echo) Fast spin echo vs gradient echo Fluid Attenuated Inversion Recovery (FLAIR) Non-cartesian trajectories (spiral) Parallel Imaging Signal attenuation Diffusion Weighted Imaging (DWI) Diffusion tractography 3D phase contrast (PC) MR angiography Time-of-Flight (TOF) MR angiography Double Inversion Recovery Black-Blood Imaging Pulsed Arterial Spin Labeling (PASL) Continuous (Pseduo-continuous) Arterial Spin Labeling (CASL) Dynamic Susceptibility Contrast (DSC) Perfusion  Dynamic Contrast Enhanced (DCE) Perfusion Hemodynamic activation response Blood Oxygen Level Dependent (BOLD) Read More
  • Introduction to MR Physics Part 5c

    Introduction to MR Physics Part 5c

    Part 5c of a six part series covering the fundamentals of magnetic resonance imaging physics. In this section, Dr. Stafford applies the underlying physics to describe the basics of MR pulse sequences. Click here to view Part 5a , Part 5b or Part 1a. Terms covered in Part 5: NMR spectroscopy Free Induction Decay (FID) Adiabatic pulse Spoiled gradient echo imaging Balanced steady-state free precession (bSSFP) Echo Planar Imaging (EPI) Fast-spin Echo Imaging (FSE) Parallel imaging acceleration Gibb's ringing artifact Hanning window filter Read More
  • Introduction to MR Physics Part 5b

    Introduction to MR Physics Part 5b

    Part 5b of a six part series covering the fundamentals of magnetic resonance imaging physics. In this section, Dr. Stafford applies the underlying physics to describe the basics of MR pulse sequences. Click here to view Part 5a , Part 5c or Part 1a. Terms covered in Part 5: NMR spectroscopy Free Induction Decay (FID) Adiabatic pulse Spoiled gradient echo imaging Balanced steady-state free precession (bSSFP) Echo Planar Imaging (EPI) Fast-spin Echo Imaging (FSE) Parallel imaging acceleration Gibb's ringing artifact Hanning window filter Read More
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  • Introduction to MR Physics Part 1a +

    Introduction to MR Physics Part 1a Part 1a of a six part series covering the fundamentals of magnetic resonance imaging physics. In this primer, Dr. Stafford discusses the course outline and basic physics of precession and excitation. Click here for Part 1b.   Terms covered in Part 1: Bohr model of hydrogen atom Stern-Gerlach experiment Spin states Spin 1/2 particle Quantum mechanics Precession Larmor equation Frequency of precession Gyromagnetic ratio Isotropic Isochromat Stationary frame Moving frame Faraday's law Radiofrequency pulse Resonance condition Flip angle Specific absorption rate Pulse sequence Tesla Off-resonance Shim Read More
  • Introduction to MR Physics Part 3a +

    Introduction to MR Physics Part 3a Part 3a of a six part series covering the fundamentals of magnetic resonance imaging physics. In this section, Dr. Stafford expands on the concepts of gradients and echoes. Click here to view Part 3b or Part 1a.   Terms covered in Part 3: Pulse sequence diagram gradients echoes (echo) envelope function Gradient Recalled Echo (gradient echo) (GRE) spin echo Read More
  • Introduction to MR Physics Part 2b +

    Introduction to MR Physics Part 2b Part 2b of a six part series covering the fundamentals of magnetic resonance imaging physics. In this section, Dr. Stafford introduces concepts of relaxation and image contrast. Click here to view Part 2a or Part 1a.    Terms covered in Part 2:   Image voxel Nutation Thermodynamic equilibrium magnetization Proton density Dephasing/Regrowth/Recovery/Decay/Relaxation Bloch equation T2 relaxation curve/ transverse dephasing curve T1 vs T2 MR signal Echo (TE) Repetition Time (TR) Inversion Recovery Imaging (IR) Inversion time MP-RAGE Proton-weighted images   Read More
  • Overview of Medical Imaging in Oncology +

    Overview of Medical Imaging in Oncology Positron Emission Tomography is an invaluable and perhaps most important tool for assessing cancer in vivo. Dr. Burrell provides a quick overview of the types of imaging used in oncology, specifically describing the role of PET in each stage of the therapy cycle. A brief history of PET is given, together with the basic physics and a glance at radiopharmaceutical use in oncology. The potential role of PET from diagnosis through staging, therapy planning, post-therapy evaluation and followup is discussed and many case studies presented. Read More
  • Introduction to MR Physics Part 6c +

    Introduction to MR Physics Part 6c Part 6c of a six part series covering the fundamentals of magnetic resonance imaging physics. This final section covers a recap of the previous five sessions and covers advanced imaging sequences and their application. Click here to view Part 6a, Part 6b or Part 1a. Terms covered in Part 6: Cardiac CINE Turbo Spin Echo (Fast Spin Echo) Fast spin echo vs gradient echo Fluid Attenuated Inversion Recovery (FLAIR) Non-cartesian trajectories (spiral) Parallel Imaging Signal attenuation Diffusion Weighted Imaging (DWI) Diffusion tractography 3D phase contrast (PC) MR angiography Time-of-Flight (TOF) MR angiography Double Inversion Recovery Black-Blood Imaging Pulsed Arterial Spin Read More
  • Introduction to MR Physics Part 3b +

    Introduction to MR Physics Part 3b Part 3b of a six part series covering the fundamentals of magnetic resonance imaging physics. In this section, Dr. Stafford expands on the concepts of gradients and echoes. Click here to view Part 3a or Part 1a. Terms covered in Part 3: Pulse sequence diagram gradients echoes (echo) envelope function Gradient Recalled Echo (gradient echo) (GRE) spin echo Read More
  • CAIN & MITNEC Advanced Imaging Networks in Canada +

    CAIN & MITNEC Advanced Imaging Networks in Canada Dr. Jean-Claude Tardif, leader of the CAIN and MITNEC imaging networks, sets the stage with an overview of each network and how they are related. The networks, while varied in focus, strive to overcome key challenges of medical imaging research, learning to harness potential developments to improve clinical practice. As a good primer, this presentation is recommended to all ImagingKT members. Read More
  • Carotid MR Imaging +

    Carotid MR Imaging Exploring the characteristics of vulnerable plaque is pivitol to the understanding of atherosclerosis disease progression. Traditionally, this has been done through histology, allowing for risk categories to be created. Dr. Moody et al., are using MR imaging (and PET imaging through CAIN2) to investigate tissue character, which, when related to histology, may be used to predict future events. It is anticipated that this knowledge could then be used for screening, for future long term trials, and to predict disease progression in the brain. Read More
  • Introduction to MR Physics Part 2a +

    Introduction to MR Physics Part 2a Part 2a of a six part series covering the fundamentals of magnetic resonance imaging physics. In this section, Dr. Stafford introduces concepts of relaxation and image contrast. Click here to view Part 1a or Part 2b.   Terms covered in Part 2: Image voxel Nutation Thermodynamic equilibrium magnetization Proton density Dephasing/Regrowth/Recovery/Decay/Relaxation Bloch equation T2 relaxation curve/ transverse dephasing curve T1 vs T2 MR signal Echo (TE) Repetition Time (TR) Inversion Recovery Imaging (IR) Inversion time MP-RAGE Proton-weighted images Read More
  • Introduction to MR Physics Part 5c +

    Introduction to MR Physics Part 5c Part 5c of a six part series covering the fundamentals of magnetic resonance imaging physics. In this section, Dr. Stafford applies the underlying physics to describe the basics of MR pulse sequences. Click here to view Part 5a , Part 5b or Part 1a. Terms covered in Part 5: NMR spectroscopy Free Induction Decay (FID) Adiabatic pulse Spoiled gradient echo imaging Balanced steady-state free precession (bSSFP) Echo Planar Imaging (EPI) Fast-spin Echo Imaging (FSE) Parallel imaging acceleration Gibb's ringing artifact Hanning window filter Read More
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