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CT Imaging Procedures > Genitourinary (CTBC-18) > Flashcards

Genitourinary (CTBC-18) Flashcards

1
Q

CT Renal Stone (KUB): FOV

A

Kidneys through bladder

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2
Q

CT Renal Stone (KUB): Indications (4)

A

Renal Stone
Flank Pn
Hematuria
Dysuria

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3
Q

CT Renal Stone (KUB): Scan Type

A

Helical

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4
Q

CT Renal Stone (KUB): Slice Parameters

A

3.75mm w matching interval

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5
Q

CT Renal Stone (KUB): Gantry Tilt

A

None

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6
Q

CT Renal Stone (KUB): Contrast

A

None

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7
Q

CT Renal Stone (KUB): Algorithm

A

Standard 400/40

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8
Q

CT Renal Stone (KUB): PKD

A

Polycystic Kidney Ds
Innumerable cystic lesions in the kidneys (and liver)
Eventually leads to kidney failure

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9
Q

CT Kidney: Indications (2)

A

Renal Mass
Renal Abnormality

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10
Q

CT Kidney: Scan Type

A

Helical

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11
Q

CT Kidney: Slice Parameters

A

3.75 mm w matching interval

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12
Q

CT Kidney: Gantry Tilt

A

None

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13
Q

CT Kidney: Oral Contrast

A

600 mL 40-60 min prior

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14
Q

CT Kidney: (IV) Contrast
Volume
Rate
Timing

A

100mL
3mL/s
1) NonCon
2) Corticomedullary: 30s delay
3) Nephrographic: 90s delay
4) Excretory: 4min

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15
Q

CT Kidney: Corticomedullary Phase

A

30s delay

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16
Q

CT Kidney: Nephrographic Phase

A

90s delay

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17
Q

CT Kidney: Algorithm

A

Standard 400/40

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18
Q

CT Kidney: Non-Con Benefit

A

Establish baseline

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19
Q

CT Kidney: Arterial Phase
Timing
Name
Purpose (2)

A

(30 s delay)
“Corticomedullary”
Eval renal arteries
Eval Renal Cortex (initially receives arterial blood supply)

20
Q

CT Kidney: Venous Phase
Timing
Name
Purpose (3)

A

(90 s delay)
“Nephrographic”
Eval nephrons
Eval for infarct
Eval for tumor characterization

21
Q

CT Kidney: Nephrons
Location
Purpose

A

Middle portion of Kidneys
Perform the work of filtering (e.g., contrast) from blood

22
Q

CT Kidney: Benefit (& timing) of Excretory Phase

A

(4+ min delay)
Eval Renal Pelvis
Eval Collecting system of Kidneys

23
Q

CT Adrenals: Purpose

A

Differentiate benign from cancerous adrenal tumors

24
Q

CT Adrenal: Clinical presentation

A

Abnormal hormone levels
E.g., Estrogens (female), Androgens (male)

25
Q

CT Adrenal: Indication

A

Adrenal Tumor

26
Q

CT Adrenal: Scan Type

A

Helical

27
Q

CT Adrenal: Slice Parameters

A

3.75 mm w matching interval

28
Q

CT Adrenal: Gantry Tilt

A

None

29
Q

CT Adrenal: Contrast
Volume
Rate
Timing

A

100mL
3mL/s
1) Non-Con
2) 60 s Portal Venous
3) 15min Delayed

30
Q

CT Adrenal: Algorithm

A

Standard 400/40

31
Q

CT Adrenal: HU measurements

A

Completed during each phase to determine type of adrenal tumor

32
Q

CT Adrenal: Most common adrenal lesion identified in CT

A

Adrenal adenoma

33
Q

CT Urogram: Purpose

A

Examine functionality and anatomy of urinary system

34
Q

CT Urogram: Scan Covers _______ during _______

A

Entire Collecting System (KUB) during Excretory Phase

35
Q

CT Urogram: Indications (5)

A

Pre-planning for ureteral STENT placement
Renal Stone
Diagnose functional/anatomical causes of recurrent renal stones
Pain
Hematuria

36
Q

CT Urogram: Scan Type

A

Helical

37
Q

CT Urogram: Slice Parameters

A

3.75mm w matching interval

38
Q

CT Urogram: Gantry Tilt

A

None

39
Q

CT Urogram: Oral Contrast

A

1000 mL 30 min prior

40
Q

CT Urogram: (IV) Contrast
Volume
Rate
Timing

A

100mL
3mL/s
1) Non-Con
2) excretory: 4+ min delay

41
Q

CT Urogram: Algorithm

A

Standard 400/40

42
Q

CT Urogram: While the Excretory phase is Essential, some scans may include_______ & _______ of _______

A

arterial imaging
venous imaging
(through the kidneys)

43
Q

CT Urogram: Variability in timing of excretory phase

A

4-10 minutes

44
Q

CT Urogram: Hydronephrosis

A

Swelling of renal pelvis

45
Q

CT Urogram: Bifid Ureter

A

double ureter

CT Imaging Procedures (11 decks)

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