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MRI image contrast

QuestionAnswer
T1 is useful for __________, whereas T2 is utilized for depicting __________. A. Blood; anatomy B. Anatomy; blood C. Pathology; anatomy D. Anatomy; pathology Anatomy; pathology
Presaturation pulses typically occur: A. Prior to the TE B. At the time 1/2 TE C. Prior to the excitation pulse D. Between the 90° RF pulse and the 180° pulse Prior to the excitation pulse
Which sequence's column in Image 113 would be repeated following the administration of a GBCA (gadolinium based contrast agent)? A. Column A B. Column B C. Column C D. Column D Column C
Column B in Image 111 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. T2 FLAIR E. T2 weighted with fat suppression F. T2* gradient echo Proton density
What determines the amount of T1 weighting in an image? A. TR B. TE C. Flip Angle D. Matrix TR
Column D in Image 106 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. T2 FLAIR E. STIR STIR
A Proton Density weighted image has a TR that is long to ____, and a TE that is short to ___. A. Maximize T1 contrast; minimize T2 contrast B. Minimize T1 contrast; minimize T2 contrast C. Maximize T1 contrast; maximize T2 contrast D. Minimize T1 Minimize T1 contrast; minimize T2 contrast
Column D in Image 109 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. T2 FLAIR E. T2 weighted with fat suppression T2 weighted with fat suppression
All of the following are properties of T1 weighting EXCEPT: A. Short TR, short TE are the parameter requirements B. Spin lattice C. Transverse magnetization D. Timed at 63% recovery E. Contrast is controlled by TR Transverse magnetization
Which of the following sets of parameters would show edema as hyperintense? A. 400 TR, 20 TE B. 1600 TR, 30 TE C. 3500 TR , 35 TE D. 4000 TR, 90 TE 4000 TR, 90 TE
Increasing the TE in a spin echo pulse sequence: A. Has no effect on image contrast B. Enables more T1 information in the image C. Enables more T2 information in the image D. Decreases the T2 information in the image Enables more T2 information in the image
Column D in Image 112 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. T2 FLAIR E. T2 weighted with fat suppression F. T2* gradient echo T2 FLAIR
Chemical or spectral fat suppression techniques suppress fat signal based on the: A. Amount of fat being imaged B. Presence of T1 relaxation in the tissue C. Presence of T2 relaxation in the tissue D. Precessional frequency of fat Precessional frequency of fat
Structures that will always appear black on an MR image include all of the following EXCEPT: A. Air B. CSF C. Cortical bone D. Tendons/Ligaments E. Metal susceptibility artifacts CSF
Column C in Image 106 corresponds to which MRI pulse sequence? Proton density
Column D in Image 111 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. T2 FLAIR E. T2 weighted with fat suppression F. T2* gradient echo T2 FLAIR
Which of the following statements is FALSE? A. T2 contrast is maximized with long TE's B. T1 contrast is maximized with short TR's C. Flip angle can control image contrast weighting D. T1 weighting is adjusted with short TE's T1 weighting is adjusted with short TE's
Column A in Image 105 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. Proton density with fat suppression E. T2 weighted with fat suppression T1 weighted
Which column in Image 113 would be best suited for evaluation of demyelinating disease? A. Column A B. Column B C. Column C D. Column D Column D
As the TR increases the amount of T1 weighted contrast ___________. A. Increases B. Decreases C. Is nulled D. Is unchanged Decreases
Column B in Image 109 corresponds to which MRI pulse sequence? Reduce TR and preserve contrast T1 weighted
Water is dark and fat is bright in: A. T1 weighted images B. T2 weighted images C. STIR D. T2* gradient echo T1 weighted images
Column D in Image 105 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. Proton density with fat suppression E. T2 weighted with fat suppression T2 weighted
All of the following are true EXCEPT: A. Inversion recovery --- 180° RF followed by 90°RF B. Gradient echo --- 90° RF followed by 180° RF C. Fast spin echo --- 90° RF followed by train of 180° RF pulses D. Spin echo --- 90° RF followed by 180° RF Gradient echo --- 90° RF followed by 180° RF
Column B in Image 106 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. T2 FLAIR E. STIR T1 weighted
A sequence with a _________ TR and a _________ TE will exhibit PD weighting. A. Short; short B. Short; long C. Long; short D. Long; long Long; short
Column A in Image 109 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. T2 FLAIR E. T2 weighted with fat suppression
A T2 weighted image will have a repetition time (TR) in the range of: A. 25 - 40 ms B. 80 - 120 ms C. 350 - 700 ms D. 2000 - 6000 ms 2000 - 6000 ms
Column B in Image 105 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. Proton density with fat suppression E. T2 weighted with fat suppression Proton density
Column D in Image 108 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. T2 FLAIR E. T2 weighted with fat suppression T2 weighted with fat suppression
Column A in Image 111 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. T2 FLAIR E. T2 weighted with fat suppression F. T2* gradient echo T2 weighted
Enabling Driven Equilibrium will enable the operator to: A. Utilize additional acquisitions/packages B. Reduce TR and preserve contrast C. Suppress the signal from fat D. Eliminate wrap around (aliasing) artifacts Reduce TR and preserve contrast
Column C in Image 111 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. T2 FLAIR E. T2 weighted with fat suppression F. T2* gradient echo T1 weighted
All of the following are properties of T2 weighting EXCEPT: A. Long TR, long TE are the parameter requirements B. Spin spin C. Transverse magnetization D. 63% decay E. Flip angle controls contrast Flip angle controls contrast
Tissues with ___ are bright on T1 weighted spin echo scans and tissues with ___ are bright on T2 weighted spin echo scans. A. short T1 times; short T2 times B. short T1 times; long T2 times C. long T1 times; short T2 times D. long T1 times; long T B. Short T1 times, long T2 times
What is wrong with a T2 weighted, fast spin echo image that has a 1.1 second TR and an 90 millisecond TE? B. The TE will yield insufficient T2 weighted contrast C. The TR does not sufficiently minimize the T1 weighted contrast The TR does not sufficiently minimize the T1 weighted contrast
Column D in Image 107 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. T2 FLAIR E. STIR STIR
A sequence with a _________ TR and a _________ TE will exhibit T2 weighting. A. Short; short B. Short; long C. Long; short D. Long; long Long; long
Column C in Image 109 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. T2 FLAIR E. T2 weighted with fat suppression Proton density
All of the following are examples of EXTRINSIC contrast parameters EXCEPT: A. TR B. TE C. T1 time D. Flip angle E. TI T1 time
In an inversion recovery sequence, image contrast is controlled by: A. TR B. TE C. TI D. All of the above All of the above
Column C in Image 108 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. T2 FLAIR E. STIR Proton density
Which of the following parameter combinations would yield the most T2 weighted image? A. 500 TR, 20 TE B. 1600 TR, 30 TE C. 2000 TR, 80 TE D. 3500 TR, 120 TE 3500 TR, 120 TE
What determines the amount of T2 weighting in an image? A. TR B. TE C. Flip Angle D. Matrix TE
Column A in Image 106 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. T2 FLAIR E. STIR T2 weighted
A T1 weighted image will have an echo time (TE) in the range of: A. 10 - 30 ms B. 80 - 120 ms C. 350 - 700 ms D. 2000 - 6000 ms 10 - 30 ms
Water is hyperintense and fat is typically dark in: A. T1 weighted images B. Proton density weighted images C. T2 weighted images D. FLAIR FLAIR
Column A in Image 108 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. T2 FLAIR E. STIR T2 weighted
Column A in Image 107 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. T2 FLAIR E. STIR T2 weighted
All of the following are examples of INTRINSIC contrast parameters in tissues EXCEPT: A. ADC (apparent diffusion coefficient) B. TR C. T1 time D. T2 time E. Proton density TR
A proton density weighted image will have a repetition time (TR) in the range of: A. 25 - 40 ms B. 80 - 120 ms C. 350 - 700 ms D. 1600 - 4000 ms 1600 - 4000 ms
Column B in Image 108 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. T2 FLAIR E. STIR T1 weighted
A T2 weighted image will have an echo time (TE) in the range of: A. 25 - 40 ms B. 80 - 120 ms C. 1600 - 2200 ms D. 2000 - 6000 ms 80 - 120 ms
Column B in Image 107 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. T2 FLAIR E. STIR T1 weighted
Column B in Image 112 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. T2 FLAIR E. T2 weighted with fat suppression F. T2* gradient echo Proton density
Column C in Image 112 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. T2 FLAIR E. T2 weighted with fat suppression F. T2* gradient echo T1 weighted
Column C in Image 105 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. Proton density with fat suppression E. T2 weighted with fat suppression Proton density with fat suppression
A proton density weighted image will have an echo time (TE) in the range of: A. 10 - 35 ms B. 80 - 120 ms C. 350 - 700 ms D. 2000 - 6000 ms 10 - 35 ms
Column C in Image 107 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. T2 FLAIR E. STIR Proton density
A T1 weighted image will have a repetition time (TR) in the range of: A. 25 - 40 ms B. 80 - 120 ms C. 350 - 700 ms D. 2000 - 6000 ms 350 - 700 ms
A sequence with a _________ TR and a _________ TE will exhibit T1 weighting. A. short; short B. short; long C. long; short D. long; long short; short
Column A in Image 112 corresponds to which MRI pulse sequence? A. Proton density B. T1 weighted C. T2 weighted D. T2 FLAIR E. T2 weighted with fat suppression F. T2* gradient echo T2 weighted
Which of the following statements is TRUE regarding spin echo sequences? A. T1 contrast is maximized with short TR's B. PD contrast is maximized with multiple echo train lengths C. T2 contrast is maximized with short TE's D. None of the above T1 contrast is maximized with short TR's
Which of the following parameter combinations would yield the most T1 weighting? A. 350 TR, 15 TE B. 500 TR, 25 TE C. 1600 TR, 30 TE D. 3500 TR, 120 TE 350 TR, 15 TE
Enabling Driven Equilibrium will enable the operator to: Reduce TR and preserve contrast
To produce an image based on differences in T1, the time interval between 90° excitation pulses should be: Short
Created by: zach1710
 

 



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