Conventional Fractionation Flashcards by Austin Dove

Q

Brachial plexus

A

Dmax <66 Gy

V60 <5%

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Q

Brainstem

A

Dmax <54 Gy

V60 <1% (of PTV)

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Q

Cochlea

A

Mean <45Gy
Dmax <50Gy

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Q

Inner ear

A

Mean <50 Gy

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Q

Eyes

A

Dmax <50 Gy

Mean <35 Gy

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Q

Glottic larynx

A

Mean <45 Gy

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Q

Lens

A

Dmax <7 Gy

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Q

Mandible

A

Dmax <70 Gy

V75 <1 cc

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Q

Optic nerves

A

Dmax <54 Gy

V60 <1% (of PTV)

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Q

Oral cavity

A

Mean <35Gy

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Q

Parotid gland (one)

A

Mean <26 Gy

V30 <50%

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Q

Parotid gland (both)

A

V20 <20 cc (if sparing both)

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Q

Temporal lobes

A

Dmax <60 Gy

V65 <1% (of PTV)

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Q

T-M joint

A

Dmax <70 Gy

V75 <1 cc

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Q

Tongue

A

Dmax <55 Gy

V65 <1% (of PTV)

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Q

Esophagus

A

Dmax<66Gy
Mean <34 Gy
V60 <17%
(17’s)

Q

Heart

A

V30<30%
Mean <20Gy
Max<66Gy

Q

Lungs

A

Mean <20 Gy
V5 < 60%
V20 < 35%
V30 <20%

Q

Pharyngeal constrictor

A

Mean <50 Gy

Q

Duodenum

A

Dmax <54 Gy

V45 <33%

Q

Kidney

A

V20 <30%
Mean <18Gy

Q

Liver

A

V30 <33%
Mean <25Gy

Q

Small intestine

A

Dmax <50 Gy
V45 <65 cc
V40 <100 cc
V35 <180 cc

Q

Stomach

A

Dmax <54 Gy

V45 <100%

Bladder

V80 <15% V75 <25% V70<35% V65<50%

Femoral heads

Dmax <50 Gy V45 <25% V40 <40% V30<50%

Penile bulb

Mean <52.5 Gy

Rectum

V75<15% V70<20% V65<25% V60<35% V50<50%

Spinal cord

Dmax <45 Gy

# Sarcoma Skin strip

2cm V20<50%