Measurements Flashcards by Jessica Perrett

Q

Liver

A

13-17 cm

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Q

MPV

A

<1.3 cm

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Q

CBD

A

<5mm

Add 1mm every decade after 50

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Q

Post cholecystectomy

A

Up to 10mm

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Q

CHD

A

<4mm

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Q

Cystic duct

A

<4mm

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Q

GB

A

7-10cm long

3-5cm TRV

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Q

GB wall

A

<3mm

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Q

Pancreas
Head
Body
Tail

A

12-18cm long
2-3cm
2-3cm
1-2cm

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Q

Pancreatic duct

A

<2mm

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Q

Kidney

A

9-12cm long
4-6cm TRV
2.5-4cm AP

(LT kidney is slightly longer than the RT but no more than 1.5cm)

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Q

Renal cortex

A

> 1cm (outer parenchyma)

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Q

RI normal and formula

A

<0.7 unit less

PSV-EDV / PSV

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Q

Normal RAR

A

> 3.5

35% of aortic flow is going to kidney

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Q

MRA velocity

A

<180 cm/s

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Q

Bladder wall thickness
Distended
And non distended

A

Distended <3mm

Non distended <5mm

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Q

Spleen

A

8-13 cm long
7 cm TRV
3-4 cm AP

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Q

Testicles

& volume

A

4x3x3

LxWxHx0.5

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Q

Varicocele

A

<2mm

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Q

Epididymis width

A

6-15 cm

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Q

Prostate

A

4x3x3

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Q

Thyroid

Study These Flashcards

A

4-6 cm long
1.5-2 cm TRV
2-4 cm AP

Q

Thyroid isthmus

Study These Flashcards

A

<1cm thick

Q

Parathyroid gland

Study These Flashcards

A

5x3x1 mm

Appendix

<6 mm diameter

Intestinal wall thickness

3-5 mm

Pyloric muscle thickness and length

Length < | Thickness <4mm

ECA velocity

<150 cm/s

ICA velocity

PSV <125 cm/s | EDV <40 cm/s

CCA velocity

PSV <125 cm/s | EDV <40 cm/s

VA velocity

<50 cm/s

Cerebellum indicates:

mm = gestational age

Cisterna Magna

<10mm

Lateral ventricles

<10 mm

AFI

5-22 cm

Placenta

AP <5cm | TRV 3-5cm

Cervix

3-4 cm

Premenopausal ovaries

3x2x2 cm

Postmenopausal ovaries

2x1x1 cm

Menarcheal endometrium

2-14 mm

Premenopausal endometrium

Up to 10-12 mm

Postmenopausal endometrium

<5mm

Postmenopausal endometrium on HRT

<8mm

Menarcheal UT

Length 6-8cm | AP and TRV 3-5cm

Nulliparous UT

Length 6-8cm | AP and TRV 5-6cm

Parous UT

Length 8-10cm | AP and TRV 5-6cm

Postmenopausal UT

Length 3-5cm | AP and TRV 2-3cm

IVC

<2.5cm

Aorta

PROX 2-3cm | Distal 1-2cm

SMA velocity

> 275cm/s

Celiac artery velocity

>200cm/s

Pyloric muscle thickness

<4mm

Pyloric channel length

<1.2 cm

Pyloric cross section

<1.5cm