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221 Position Final

RAD Positioning Final

QuestionAnswer
Contrast flow during an IVU Kidney, Renal Pelvis, Ureter, Bladder, Urethra
Scheduling of the Hystero Within 10 days of the start of menses
Atypical Cervical Vertebra C-1, C-2 and C-7
Positioning lines/ CR for Waters for Facial bones MML perp,, MSP perp, OML 37 degrees from plane of IR, CR exits acanthion
Best practices for successful pediatric imaging Set up room prior to bringing in patient, communicate at age appropriate level, tell the truth, shield
Skull shape with petrous ridges at 40 degrees from MSP Dolicocephalic
How do the orbits project in the skull 30 degrees superiorly and 37 degrees toward the MSP
CR location for above the diaphragm ribs T-6, T-7
Positioning lines/ CR for Lateral Nasal bones IP perp., MSP //, CR 1/2" inferior to the nasion
Sinuses best demonstrated on the Caldwell Frontal and Ethmoid
Routine for sinuses Waters, Caldwell, Lateral, possibly SMV
C-arm mode that removes bone to enhance vessels on the image Subtraction
3 point landing for the Rhese method Chin, cheek and nose against the IR
Parts of the "Scotty Dog" Nose-transverse process, Eye-pedicle, Ear-superior articular process, Neck-pars interarticularis, Leg-Inferior articular process
Demonstrated on the Open Mouth Odontoid C1/C2 Zygapophyseal joint, dens
Name for the angle of the mandible Gonion
Line from EAM to Inferior Orbital Rim IOML
Vertical portion of the mandible Ramus
SI joint (posterior) obliques demonstrate Upside SI joint
Positioning lines/ CR for the SMV IOML //, MSP perp,. CR 1 1/2" inferior to the mentum
Best demonstrates the Optic Foramina PA Rhese
Head rotation for Axiolateral Obl of the Mandible for Body 30 degrees toward IR
How do you compensate for a patient who cannot tuck chin for Towne projection to place OML perp Use IOML and increase angle to 37 degrees caudal
Normal location of the kidneys Between the xiphoid and the iliac crest
Fracture of the 5th metacarpal Boxer's
Features specific to C, T, and L vertebra Cervical- transverse foramina and bifid tips. Thoracic- facets for articulation w/ribs, Lumbar-thick bodies, blunt spinous processes
Why a chest may be included with a rib series To demonstrate underlying lung pathology
Posterior rib articulations Costotransverse and Costovertebral joints
Positioning lines/ CR for Caldwell for Sinuses CR horizontal, OML 15 degrees from plane of IR, MSP perp., CR exits the nasion
In positioning for the OM Odontoid, what anatomic structures are lined up Mastoid tips, bottom of the top incisors
Function of the cranium Protect the brain
Name a mild, moderate and severe contrast reaction symptom Mild-nausea, Moderate-giant hives, Severe-respiratory arrest
Demonstrates the right cervical intervertebral foramina LPO, RAO C-spine
Best demonstrates the orbits Modified Waters
High dose C-arm mode Boost
C-spine routine Lateral, Both Axial Obliques, AP Axial, OM Odontoid
Parts of the vertebra that form the zygapophyseal joint Superior and inferior articular processes
Criteria for a good pediatric chest x-ray No rotation, 9 or 10 posterior ribs demonstrated, spine visualized through heart shadow
True or False: Low Osmolality contrast is iodinated. TRUE
Results in a free floating zygoma Tripod fracture
Rule in regard to contrast media and Metformin Metformin must be stopped at the time of the contrast injection for at least 48 hours to avoid risk of renal failure
Places the sternum in the heart shadow 15-20 degree RAO
Demonstrates all 4 sinus groups Lateral
Ends of the sagittal suture Anterior-Bregma Posterior-Lambda
Routine for Ribs AP/PA Above, Obl Above, AP/PA Below, PA Chest
Location of Petrous Ridges on the Waters Below the level of the maxillary sinuses
Angle and tube direction for AP and PA Oblique C-Spines PA-15-20 degrees caudad, AP-15-20 degrees cephalad
Reason sinuses are performed erect To demonstrate air fluid levels
IVU obliques best demonstrate Upside kidney // to IR, and downside ureter
Angle compensation for a pediatric skull Decrease by 5 degrees
Partial dislocation Subluxation
Positioning for the Modified Laws Head rotated 15 deg toward IR, tube angled 15 deg caudad, CR 1 1/2" superior to upside EAM
Importance of accurate technique on sinuses Overpenetration may burn out pathology, underpenetration may mimic it
Suture between temporals and parietals Squamosal
Retroperitoneal urinary structures Kidneys
Indicated by fluid in the sphenoid sinus following skull trauma A basilar skull fracture
Difference in CR between AP sacrum and AP SI joints Sacrum-15 cephalad SI-30-35 (more on women) cephalad
Forms the TMJ Condyle of the mandible and fossa of the temoporal bone
Position a patient in shock will be placed in Trendelenburg
Trauma Rule 1 Two views, 90 degrees apart
Intervertebral foramina are best demonstrated on Obl C-Spines, Lateral T-Spine and Lateral L-Spine
Routine Sternum RAO, Lateral
Images taken for a Lt Anterior 5th Rib Injury PA and RAO above, PA Chest, recumbent below
Demonstrates C-6 to T-3, arm closest to IR raised Swimmers
Bones of the skull cap Rt and Lt Parietal, Frontal and Occipital
Bones of the cranial floor Rt and Lt Temporal, Sphenoid and Ethmoid
Pediatric restraining devices Pigg-o-stat, Sandbags, Bunny Wrap, Tamem board
Contraindications to contrast media Renal failure, Multiple myeloma, pheochromocytoma, previous contrast reaction, acute sickle cell crisis
Posterior oblique Lumbar spine obliques best demonstrate Downside zygaphophyseal joints
CR for PA skull, PA Caldwell 0-Glabella, Caldwell-Nasion
Term for inner and outer portion of the orbit Inner-Apex Outer-Base
Position of the IR for the Cross table lateral hip // to the femoral neck
Places Dorsum Sellae within the foramen magnum AP Towne
Places Dens within the foramen magnum Parietoacanthial Waters
Point at the bridge of the nose Nasion
Breathing instructions for above and below the diaphragm ribs Above-inspiration, Below-expiration
Demonstrated on Hysterosalpingogram Uterine tube patency, Defects within the uterus, congenital conditions of the uterus
Contrast used for a myelogram Iodinated, non-ionic, intrathecal
Anatomy demonstrated by rib obliques Axillary portion of the ribs
Done to enhance filling of the pelvicalyceal system Ureteric compression
Best demonstrates the maxillary sinuses Parietoacanthial Waters
Position of the head to prevent contrast from entering during a myelogram Hyperextension
Area where the injection is made for the myelogram L2,-L3, or L3-L4 and into the subarachnoid space
Images necessary to evaluate TMJ function Bilateral, open and closed mouth
Location of the pituitary gland Within the Sella Turcica of the Sphenoid bone
If a C-spine is ordered on a patient with Cervical Trauma the tech will Image the patient with the collar on, and without removing any restraints, and get the image read by a physician
Tilt and rotation for the tangential SMV 15 degrees rotation toward side of interest, Chin is tilted 15 degrees toward side of interest, CR skims zygoma of interest
Facial fractures Blow out- fx of orbital floor Tripod-results in free floating zygoma
TRUE OR FALSE: Cystograms are Antegrade studies FALSE They go against the flow and are retrograde.
Positioning lines for the Modified Waters MSP perp, LML perp, OML forms a 55 degree angle with the plane of the IR
Routine Coccyx AP Axial, 10 degrees caudad, Lateral 3-4" posterior to the ASIS and 2" inferior
Names for C1 and C2 Atlas and Axis
Three parts of the sternum from superior to inferior Manubrium, Body, Xiphoid
First thing tech should do in the case of a contrast reaction Call for help!
Created by: EHodgis