RADBIO 3

18問 • 1年前

通報

問題一覧

this is the law of Radio-sensitivity of Living Tissue varies with maturation

Law of Bergonie & Tribondeau

Physical Factors that affect radio-sensitivity LRPF

> LET > Relative Biologic Effectiveness > Protraction & Fractionation

measure of the rate at which energy is transferred from ionizing radiation to soft tissue

Linear Energy Transfer

As the LET of radiation increases, the ability to produce biologic damage also increases.

Relative Biologic Effectiveness

delivered continuously in lower dose

Protraction

dose delivered at the same dose in equal portions in regular interval

Fractionation

Biological Factors that Affect Radio-sensitivity OARCH

1. Oxygen Enhancement Ratio 2. Age 3. Recovery 4. Chemical Agents 5. Hormesis

ratio of the dose necessary to produce a given effect under anoxic conditions to the dose necessary to produce the same effect under aerobic conditions

Oxygen Enhancement Ratio

Humans are most radiosensitive _____ birth

before

agents that enhance the effect of radiation

Radiosensitizers

protect against the effect, compounds with molecules containing a SULFHYDRYL group ex. CYSTEINE and CYSTEAMINE)

Radioprotectors

biologic responses to low exposures to toxins or other stressors

Hormesis

mathematical relationship between various radiation dose levels and magnitude of the observed response

Radiation dose response

used in radiologic oncology

Hyperbaric/High Pressure Oxygen

_________ x-ray imaging is performed under conditions of ___ oxygenation

1. Diagnostic 2. full

The response is directly proportional to the dose

Linear Dose Relationship

Varied responses are produced from varied dose

Nonlinear dose relationship

LET of the following: 25 MV X-rays 60^Co gamma rays 1 MeV electrons Diagnostic x-rays 10 MeV protons Fast neutrons 5 MeV alpha particles Heavy nuclei

0.2 keV/um 0.3 keV/um 0.3 keV/um 3.0 keV/um 4.0 keV/um 50.0 keV/um 100.0 keV/um 1000.0 keV/um

physiology of circulation academic weaponizer

E · 24問 · 2年前

physiology of circulation academic weaponizer

24問 • 2年前

reproductive academic weaponizer

E · 55問 · 2年前

reproductive academic weaponizer

55問 • 2年前

cells prelim acad weaponizer

E · 24問 · 2年前

cells prelim acad weaponizer

24問 • 2年前

respiratory/body cavities prelim acad weaponizer

E · 20問 · 2年前

respiratory/body cavities prelim acad weaponizer

20問 • 2年前

integumentary prelim acad weaponizer

E · 29問 · 2年前

integumentary prelim acad weaponizer

29問 • 2年前

skeletal prelim acad weaponizer

E · 33問 · 2年前

skeletal prelim acad weaponizer

33問 • 2年前

tissue prelim acad weaponizer

E · 42問 · 2年前

tissue prelim acad weaponizer

42問 • 2年前

membrane prelim acad weaponizer

E · 20問 · 2年前

membrane prelim acad weaponizer

RPC L2

RPC L2

RPC L3

RPC L3

RPC L4

RPC L4

ALE

ALE

RPC L5

RPC L5

RPC M1

RPC M1

RPC M1/2

RPC M1/2

RPC M2

RPC M2

RPC M2.5

RPC M2.5

RPC M3

RPC M3

Midterm

Midterm

MIDTERM

MIDTERM

Midterm

Midterm

RPC F1

RPC F1

FINALS #1

FINALS #1

RPC F2

RPC F2

RPC F3

RPC F3

Finals

Finals

Prelim

Prelim

ISI FINALS PROLOGUE

ISI FINALS PROLOGUE

ISI FINALS EPILOGUE

ISI FINALS EPILOGUE

ISI FINALE

ISI FINALE

Chapter 3.5/4

Chapter 3.5/4

RADBIO 1&2

RADBIO 1&2

RADPRO 1&2

RADPRO 1&2

CHAPTER 4+1 NOT COMPLETE

E · 60問 · 1年前

CHAPTER 4+1 NOT COMPLETE

RADPRO 3

RADPRO 3

Chapter Left

Chapter Left

POI P1

POI P1

POI P2

POI P2

POI P3

POI P3

QUIZ 4 PART

QUIZ 4 PART

1-3

1-3

4 SECTION PUTA

4 SECTION PUTA

M1 K Ver

M1 K Ver

M2 K Ver

M2 K Ver

1-3

1-3

RAD BIO 4

RAD BIO 4

Awa

Awa

not parts

not parts

RADBIO & RADPRO 5

RADBIO & RADPRO 5

RADBIO & RADPRO 6

RADBIO & RADPRO 6

M4in

M4in

C5 Orig V1

C5 Orig V1

C5 Part 2

C5 Part 2

Urologic Procedures

Urologic Procedures

DRUGS

DRUGS

C5 Orig V2

C5 Orig V2

RAD BIO 7

RAD BIO 7

RAD BIO 8

RAD BIO 8

RAD PRO 6 & 7

RAD PRO 6 & 7

GI Procedures

GI Procedures

Compressed

Compressed

OMY TUBE

OMY TUBE

P2/3

P2/3

BREAST

BREAST

M1 PPT

M1 PPT

F1 Final

F1 Final

SPINE

SPINE

PRELIM FINALE

PRELIM FINALE

MIDTERM FINALE

MIDTERM FINALE

FINALS FINALE

FINALS FINALE

PPT4

PPT4

EXAM BASED

EXAM BASED

EXAM BASED

EXAM BASED

問題一覧

this is the law of Radio-sensitivity of Living Tissue varies with maturation

Law of Bergonie & Tribondeau

Physical Factors that affect radio-sensitivity LRPF

> LET > Relative Biologic Effectiveness > Protraction & Fractionation

measure of the rate at which energy is transferred from ionizing radiation to soft tissue

Linear Energy Transfer

As the LET of radiation increases, the ability to produce biologic damage also increases.

Relative Biologic Effectiveness

delivered continuously in lower dose

Protraction

dose delivered at the same dose in equal portions in regular interval

Fractionation

Biological Factors that Affect Radio-sensitivity OARCH

1. Oxygen Enhancement Ratio 2. Age 3. Recovery 4. Chemical Agents 5. Hormesis

ratio of the dose necessary to produce a given effect under anoxic conditions to the dose necessary to produce the same effect under aerobic conditions

Oxygen Enhancement Ratio

Humans are most radiosensitive _____ birth

before

agents that enhance the effect of radiation

Radiosensitizers

protect against the effect, compounds with molecules containing a SULFHYDRYL group ex. CYSTEINE and CYSTEAMINE)

Radioprotectors

biologic responses to low exposures to toxins or other stressors

Hormesis

mathematical relationship between various radiation dose levels and magnitude of the observed response

Radiation dose response

used in radiologic oncology

Hyperbaric/High Pressure Oxygen

_________ x-ray imaging is performed under conditions of ___ oxygenation

1. Diagnostic 2. full

The response is directly proportional to the dose

Linear Dose Relationship

Varied responses are produced from varied dose

Nonlinear dose relationship

LET of the following: 25 MV X-rays 60^Co gamma rays 1 MeV electrons Diagnostic x-rays 10 MeV protons Fast neutrons 5 MeV alpha particles Heavy nuclei

0.2 keV/um 0.3 keV/um 0.3 keV/um 3.0 keV/um 4.0 keV/um 50.0 keV/um 100.0 keV/um 1000.0 keV/um