MRI 222 - MR Physics II

2. Differentiate between fast imaging capabilities of Fast Spin Echo and Echo Planar Imaging. Differentiate between Kspace and different filling techniques.

3. Identify and utilize the application of motion in imaging angiographic MRI studies.

4. Advanced Imaging: recognize perfusion and diffusion imaging as the basic for functional magnetic resonance imaging.

5. Discuss advanced cardiac sequences and hardware and its improvement in the detection of cardiac disease.

6. Magnet types and different uses of MR coils.
Course Outline:
 

I. Identify the differences in gradient echo types and uses.

A.    Identify the conditions necessary for a steady state.

B.    Identify and discuss the use of flip angles and their weighting parameters.

C.    Discuss gradient echo sequences and their use in various exams.

D.    Discuss fluid attenuated inversion recovery (FLAIR).

E.    Differentiate between balanced and steady state free precession gradient echo types.

F.    Discuss and define slew rate, rise time, duty cycle, and gradient amplitude.

II. Differentiate between fast imaging capabilities of Fast Spin Echo and Echo Planar imaging.

A.    Identify the pulse sequence characteristics of turbo imaging.

B.    Describe sequential filling of k-space and its application.

C.    Discuss k-space and filling techniques.

D.    Discuss and diagram an echo planar imaging pulse sequence.

E.    Describe scan time and associated parameters and calculate scan time.

F.    Describe the different ways that k-space fills during echo planar imaging (EPI).

G.    Identify the enhanced hardware requirements for EPI.

H.    Relate several critical situations that are particularly suited for EPI.

III. Detail and discuss the application of motion in magnetic resonance angiography imaging.

A.    Describe the flow void phenomenon.

B.    Discuss entry slice phenomenon and flow compensation.

C.    Differentiate between time of flight, phase contrast magnetic resonance angiography, and contrast enhance magnetic resonance angiography.

D.    Discuss black and blight blood imaging.

E.    Discuss water and fat saturation.

F.    Discuss spiral flow, laminar flow, turbulent flow, and pulsatile flow.

G.    Identify the advantages and disadvantages to TOF-MRA imaging.

H.    Discuss MRA image formation.

I.      Discuss Velocity encoding (VENC) settings.

J.     Identify how flow encoding axes impacts MRA imaging.

K.    Discuss the importance of scan timing when contrast media is required.

IV. Characterize perfusion and diffusion imaging as the basis for functional magnetic resonance imaging.

A.    Discuss the use of exogenous and endogenous MRI contrast agents.

B.    Differentiate between perfusion and diffusion imaging.

C.    Identify the magnetic properties of oxyhemoglobin and deoxyhemoglobin and identify how those properties relate to MRI.

D.    Describe the result of blood oxygenation level dependent (BOLD) imaging.

E.    Discuss the common uses for diffusion weighted imaging (DWI).

F.    Discuss the common uses for perfusion imaging.

G.    Discuss the b-value and spin echo sequences as it relates to diffusion weighted imaging.

H.    Differentiate between functional MR and spectroscopy.

I.      Differentiate between single voxel and multi-voxel techniques.

J.      Discuss the common uses for spectroscopy.

V. Identify and discuss advanced cardiac sequences and hardware utilized in cardiac disease detection.

A.    Identify the MRI system specifications necessary for cardiac imaging.

B.    Describe the principle pulse sequence used for cardiac imaging.

C.    Discuss effective TR, available imaging times, trigger delay, trigger window as it relates to cardiac imaging.

D.    Discuss and calculate the available imaging time to acquire slices.

E.    Identify the four principle imaging planes for cardiac anatomy.

F.    Discuss data acquisition in cine imaging.

Discussion Board

Assignments

PowerPoint Presentations
Mandatory Course Components:
None
Equivalent Courses:
None