b.inggris rad.pptx

7/21/2019 B.Inggris Rad.pptx

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Name:

1. Ahmad Ardi Pratama

2. Muhammad Eri H



IAEAInternational Atomic Energy Agency

Interventional Radiology

Radiation Sources in medicine

diagnostic Radiology



3

Objective

• To become familiar with the technology and operation of

interventional radiology !ray "y"tem".

• To become familiar with the "pecific radiation ri"#" for

patient" and "taff a""ociated with interventional radiology.



$

Contents

• %e"cription of interventional radiology !ray "y"tem".

• E&uipment malfunction affecting radiation protection.

• 'riteria of acceptability and &uality control.



(

Interventional Radiology

)nterventional radiology u"e"

!ray imaging to guide the

placement of catheter"* "tent"

etc. in blood ve""el" and

organ" for the purpo"e of

correcting or treating a

particular condition.



+

Interventional Radiology (cont)

,hen contra"t media i" u"ed to

outline blood ve""el"* the techni&ue

of digital "ubtraction angiography

-%A/ may al"o be u"ed.

During DSA, a “negative” digital

fluoroscopic image of the body part

under examination is digitally combined

with each frame of the subsequent

fluoroscopic image while a contrast

medium is injected into the blood

vessels

!he resultant image "inreal time or recorded# is

displayed largely free of

anatomy that might

otherwise obscure the

blood vessels

0ueen"land %iagno"tic )maging



A fluoro"copic

"y"tem thatcan be u"ed

for %A and

interventional

radiology.




• luoro"copy i" commonly u"ed but computed tomography

and ultra"ound may al"o be u"ed.

• 'ompared to other fluoro"copic procedure"* fluoro"copic

epo"ure time" can be long and may be combined with

eten"ive radiographic epo"ure".

• Patient and "taff radiation do"e" can be high.

4 'ompri"e" fluoro"copically guided inva"ive procedure" that

predominantly have a therapeutic ob5ective. Acce"" to the

organ or ve""el of intere"t i" u"ually percutaneou" and

generally performed under local ane"the"ia and 6 or "edation.




7

• 8ecau"e the accumulated patient do"e may be high* the

e&uipment "hall incorporate a continuou" indication of

patient do"e "uch a" a %o"e!Area Product meter.

• A device mu"t indicate the total elap"ed fluoro"copic

epo"ure time for each patient and provide an audible

warning to the fluoro"copi"t at a predetermined interval*preferably not eceeding ( minute".

• luoro"copic "y"tem" u"ed for interventional radiology mu"t

comply with the ba"ic re&uirement" that are applicable to

fluoro"copic e&uipment -Module 2.$/.




19

The type" of malfunction" that "hould be con"idered are:

• generator* !ray tube and imaging "y"tem deficiencie"

li"ted in Module" 2.1 and 2.2* and

• fluoro"copy "y"tem problem" li"ted in Module 2.$.

Malfunctions affecting radiation rotection



11

• inade&uate radiation protection training received by

interventional phy"ician".

A""uming appropriate dedicated e&uipment i" u"ed* it

function" correctly* i" properly maintained and i" "ub5ect to a

&uality a""urance programme* other cau"e" of avoidable

patient and "taff epo"ure during interventional radiology

might re"ult from:

• comple procedure" which are not optimi;ed -epo"ure

parameter"* the number of image" ac&uired* do"e rate*

patient po"itioning* etc./<

!roblems affecting radiation rotection

b.inggris rad.pptx

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