Introduction to Clinical Radiography R103 by iqbiU0h7

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									Introduction to Clinical
     Radiography
        R103 -- SSII 2003
 Unit VIII -- Mobile Equipment &
              Exams
            Mobile Equipment
 Terminology
     – "portable" -- capable of being
       carried
     – "mobile" -- moveable
 Types     of equipment
     – classified by power source
        conventional outlet
        capacitor
        battery


UNIT VIII                               2
            Conventional Power Units
 usespower from wall socket
 many problems
     – inadequate power lines
     – line voltage fluctuations
     – restricted techniques
     – bulky, heavy, hard to move




UNIT VIII                              3
            Capacitor Discharge Units
   uses temporarily stored electric
    charge
     – wall socket power used to charge
       capacitors
     – stored charge used in exposure
   problems
     – limited amount of storage
     – limited mAs
   advantages
     – small, easy to move
     – low $$


UNIT VIII                                 4
              Battery Operated Unit
  uses rechargeable
   batteries
  problems
       – weight (power assist to
            move)
       – time for charging
  advantages
       – range of kVp & mAs
       – can be used in power
         outage

UNIT VIII                             5
            Mobile Fluoroscopy
 “C-arm” units
 Two component
  parts
     – x-ray tube,
       controls,
       generator & II
     – viewing
       monitor(s)



UNIT VIII                        6
                 Mobile Radiography
   Patient types
     – critically ill patient
     – post-op, ICU, CCU,
       isolation, etc.
     – in surgery
             ortho,localization,
             GB, etc,
     – in traction




UNIT VIII                             7
             Mobile Exam Types
   chest
    – AP projection, erect
      position
    – seated in bed
    – IP or cassette propped
      behind patient
    – CR to film in MS plane at
      T7
    – no grid
    – beware of lines & tubes in
      patient




UNIT VIII                          8
 abdomen
     – AP projection, supine position
     – must use stationary grid
               (beware--soft beds tip grid)
     – CR & alignment as usual
 miscellaneous
     – lat decubitus chest or abdomen
     – ortho

UNIT VIII                                      9
        Problems Doing Mobile Exams
 physical     set-up of equipment
     – room size & furniture
     – inability to get desired SID
 variable    set-up
     – more errors in selecting exposure
       factors
     – more motion problems



UNIT VIII                                  10
 positioning
     – patient condition
     – available help
 special          precautions
     – isolation patients
             usuallyneeds 2 radiographers
             cleaning equipment

     – surgery
             sterile   fields


UNIT VIII                                    11
 radiation          protection
     – less shielding --- more people
     – allow non essential personnel to
       leave area
     – use distance
               extension cord on exposure
             6’
             activating switch to allow operator to
             move away
     – wear apron

UNIT VIII                                             12

								
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