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Anatomy module 7 > Radioanatomy > Flashcards

Radioanatomy Flashcards

1
Q

Ultrasound superficial structures (thyroid

A

Linear probe

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2
Q

Ultrasound abdomen

A

Convex probe

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3
Q

Thyroid gland Well suited to ultrasound study because of its

A

superficial location, vascularity, size and echogenicity

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4
Q

Thyroid appearance i ultra sound

A

Ground glass

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5
Q

Thyroid shape in transverse view

A

Pear shape

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6
Q

Normal thyroid gland is _______________relative to the overlying strap muscles of the neck

A

Uniformly echogenic

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7
Q

To visualize the thyroid gland optimally

A

Higa

Unan s balikat

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8
Q

Due to the extreme reflection from the tissue-air interface of the trachea, no image is seen behind the trachea on an anterior ultrasound

A

Acoustic shadowing

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9
Q

A cystic structure transmits sound with very little attenuation, resulting in a greater intensity of sound waves behind it

A

Enhancement

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10
Q

have been shown to have predictive value for determining the probability of malignancy in thyroid nodule

A

Color and power doppler

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11
Q

Peripheral flow pattern

A

benign nodules, and malignant nodules

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12
Q

A minority of adenomas may be autonomously hyperfunctioning causing

A

Thyrotoxicosic

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13
Q

Low TSH level would be an indication for thyroid

A

Scintigraphy

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14
Q

otherwise not useful in the evaluation of thyroid nodules

A

Scintigraphy

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15
Q

procedure that uses nuclear medicine imaging to evaluate the thyroid functions

A

Thyroid scan

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16
Q

uses small amounts of radioactive material to diagnose disease

A

Nuclear medicine

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17
Q

Three different techniques that use nuclear medicine to evaluate your thyroid’s function and structure

A

Image of thyroid
Thyroid function without image
evaluate patients with thyroid cancer

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18
Q

evaluates the function of the gland. When the thyroid absorbs the radioactive iodine, the gland processes it to make thyroid hormones

A

Thyroid uptake

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19
Q

evaluate the capacity to produce the thyroid hormone

A

Radioactive iodine

20
Q

Thyroid nodule with a much higher uptake of radioactive iodine than the surrounding parenchyma

A

Hot nodule

21
Q

are almost always adenomas–half are autonomous which cause the surrounding normal thyroid tissue to become suppressed

A

Hot nodule

22
Q

Thyroid nodule with a much lower uptake of radioactive iodine than the surrounding parenchyma

A

Cold nodule

23
Q

20% of cold nodules are

A

Malignant

24
Q

commonly is a colloid cyst

A

Cold nodule

25
Q

Supeior pair have more constant location at

A

Cricoid cartilage

26
Q

Imaging studies of PTG should be performed only after the diagnosis of

A

HPT

27
Q

become the standard for interrogating the parathyroid glands

A

12-or 15-MHz transducers

28
Q

Normal-sized parathyroid glands are usually not visualized with

A

Ultrasound

29
Q

parathyroid adenomas appear as a discrete, oval, anechoic or hypoechoic masses

A

Gray scaleimage

30
Q

Primary imaging modalities for pancreas

A

Ultrasound–CT scan with and without contrast

31
Q

enters into major papilla together with the CBD

A

Ducts of wirsung

32
Q

empties into minor papilla

A

Ducts of santorini

33
Q

Upper limit size of main duct

A

3mm young adult

5mm elderly

34
Q

the primary imaging method for evaluating adrenal disorders

A

CT

35
Q

To detect small lesions and correct CT attenuation measurement requires

A

Tin section scanning

36
Q

can be useful when characterizing the enhancement pattern of lesions on portal venous phase images or evaluating washout on delayedenhancement images

A

IV contrast

37
Q

most useful as an alternative to CT in patients who cannot tolerate intravenous iodinated contrast and/or when confirming a diagnosis of hemorrhage

A

MRI

38
Q

Pituitary gland

superior border tends to be convex

A

Female

39
Q

Pituitary gland

superior border is usually concave

A

Male

40
Q

Most common abnormalities that arise in the pituitary gland are

A

pituitary adenoma,
Rathke’s cleft cyst and
craniopharyngioma

41
Q

Gold standard in pituitary gland

A

MRI

42
Q

Pituitary gland

Normal height measurement

A

3-8 mm in adults–Up to 10 mm during puberty–may be > 10 mm during pregnancy

43
Q

2-5 mm in diameter–Connects to hypothalamus, passes behind optic chiasm

A

Stalk

44
Q

Strong contrast enhancement of normal gland

A

No blood brain barrier

45
Q

Vertically oriented structure which connects the pituitary gland to the brain. It is thinner at the bottom and thicker at the top

A

Pituitary stalk

Anatomy module 7 (1 decks)

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