QUESTIONS WITH VERIFIED SOLUTIONS
GRADED A+
White matter lesions/demyelination appears _____, or hyperintense to
white matter on T2 FLAIR imaging. --CORRECT ANSWER--bright
In Inversion Recovery MR pulse sequence, a short inversion time (TI)
_____ signal from short T1 tissues (fat/marrow), whereas the
application of a ____ TI time nulls signal from long T1 tissues such as
water/CSF. --CORRECT ANSWER--nulls, long
T1 weighted:
- _____ has a bright signal (bone marrow)
- tissues with little fat or water e.g. cortical bone, tendons, ligaments
are _____ in both T1 & T2 --CORRECT ANSWER--fat, dark
air =
fat =
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,water (CSF) = --CORRECT ANSWER--dark, bright, dark
In both T1 and T2, bony cortex yields _____ signal, while bone
marrow can yield ____ signal. --CORRECT ANSWER--low/dark,
high
T1 tends to have ____ muscle compared to bright marrow, whereas
T2 muscle yields ______ signal intensity. --CORRECT ANSWER--
dark, hypointense
T1 is consistently ____ ____ and typically ______. --CORRECT
ANSWER--bright fat, hypointense
Downside to T1 imaging is the ____ to differentiate between gray and
white matter. --CORRECT ANSWER--inability
T1 "anatomy sequence" makes fluid appear _____, and anything with
fatty tissue/substance appear _____. --CORRECT ANSWER--dark,
bright
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,On PD images, white matter lesions/demyelination will appear _____
to surrounding white matter, just not as "black to white" as T2
FLAIR. --CORRECT ANSWER--hyperintense
T2 "pathology/function" makes fluids/edema appear _____ or
______. --CORRECT ANSWER--bright, hyperintense
T2 FLAIR consistenly _____ the signal from fluid making CSF/fluid
appear very ____. --CORRECT ANSWER--suppresses, dark
On T1 images, tissues with short T1 times (subcutaneous fat or fatty
bone marrow) appear ____. --CORRECT ANSWER--bright
T1: Tissues with long T1 times (fluid) appear: --CORRECT
ANSWER--dark
T1: Solids (like cortical bone) appear: --CORRECT ANSWER--dark
T1: If "fat sat" is used, fat will appear: --CORRECT ANSWER--dark
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, T1-weighted image: ____ subcutaneous fat, yellow marrow, ____
muscle and _____ meniscus and tendons. --CORRECT ANSWER--
bright, dark, black
T2 weighted:
dense bone =
air =
fat =
water (CSF) = --CORRECT ANSWER--dark, dark, dark, bright
Tissues with short T2s appear ____, those with long T2s are _____. --
CORRECT ANSWER--dark, bright
Fluid has a long T2, joint effusions and muscle/bone marrow edema
appear ____. Thus T2 images are the most ____ to pathology. --
CORRECT ANSWER--bright, sensitive
Cortical bone has a very ____ T2, thus it appears ____ on T2 images.
--CORRECT ANSWER--short, dark
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