Friday 21 February 2014

MODULATION TRANSFER FACTOR ---MCQ FOR FRCR




JOIN THIS SITE TO GET GET REGULAR POST


MUDULATION TRANSFER FACTOR (MTF)


195.True regarding MTF is/are


a.describe the ability of imaging system to reproduce the information

b.an MTF of 0 (zero)  is a perfect system

c.MTF of focal spot  increases with magnification used

d. intensifying screen MTF decreases with magnification

e.magnification reduces the frequency of information to be resolved 


ANSWER IN THE NEXT BLOG



POST YOUR ANSWER BELOW IN THE COMMENT


USG -----MATCHING LAYER


20) True regarding matching layer
a)It is used in front of transducer
b) Improve transmission of ultrasound from transducer to

patient and not vice-versa

c) The thickness of matching layer must be equal to half of

ultrasound wavelength in the matching layer
d)Impedance of matching layer must be similar to that of 

soft tissue
e)Made of mixture of aluminium powder and epoxy resin


ANS abe
The thickness of matching layer must be equal to quarter of

ultrasound wavelength in the matching layer. Impedance of 

matching layer must be about mean of the impedances on

each side of matching layer ( crystal and soft tissue) .




FRCR PART 1 (e-book)

FRCR PART 1 (e-book)

MCQs RADIOPHYSICS (MRI AND USG)

by NAGENDRA KUMAR SINHA (write a review)
Type: e-book
Genre: Diet & Health, Medicine & Science
Language: English
Price: Rs.225.00
Available Formats: PDF Immediate Download on Full Payment
   




No comments:

Post a Comment