modalities and procedures Flashcards
(44 cards)
pt is having no issues and its been at least one year since her last screening exam and she is 40 or older
screening
pt is complaining of an issue with her breast or her physician feels something
diagnostic
4 imaging exams
dbt
us
mri
sentinel node mapping
xray tube moves in an arc across the breast while multiple projections are taken. images are perpendicular to beam. images are parallel to detector; projections are reconstructed into slices; slices are dependent on breast thickness
dbt
sweep of gantry
arc
the angles in degrees from the negative to positive side; these are the images initially taken. this is where the actual radiation dosage to the patient comes from
projections
the number of images created from the projections to create the 3D mammogram; dependent on how much the breast is compressed in mm; 1mm thick
slices
for CC DBT image set- images are taken from ______ to ______ breast
inferior
superior
for MLO DBT image set- images are taken from _____ to _____ breast
lateral
medial
MQSA = __ mGy per view
DBT= __ mGy one view
3
1.81
uses only 3D slices to create the 2D image; cut patient dose back down to approx half; cuts scan time
synthesized 2D images
adjunct screening exam; automatically scans a woman’s breast capturing multiple images; displays them in 3D; ideal for women with dense breasts
whole breast ultrasound/automated whole breast ultrasound WBUS/ABUS
both breasts are imaged; can have improved tissue contrast of inconclusive masses on other tests; contrast images taken looking for increased uptake
mri
most common malignancy found on breast MRI
gadolinium
_____ is expensive compared to mammo and us with false positive results of benign masses; only effective in 50% of patients with DCIS
MRI
network of lymph nodes to rid the body of toxins and waste and other unwanted materials; its major role is to continually collect excess interstitial fluid and drain it away from the tissues
lymphatic system
tissue swelling from an accumulation of fluid that is unable to drain through the lymph system; commonly found in patients that have many lymph nodes removed during breast cancer treatment
lymphedema
used to check for breast cancer cells spreading/metastasizing
sentinel node mapping
radioactive isotopes and/or a blue dye is injected at the sit of the lesion 2 hours before surgery; during surgery a gamma detector is used to locate the path of drainage from the tumor to the lymph nodes
sentinel node procedure
interventional procedures - 8
informed consent
cyst aspiration
abscess drainage
fine needle aspiration
core biopsy
vacuum assisted biopsy
needle localization/surgical biopsy
specimen radiograph
permission ranted in the knowledge of the possible consequences, typically that which is given by a dr to the patient for treatment with full knowledge of the possible risks and benefits. procedure explanation with risks and benefits and alternatives by provider who performs intervention. tech/nurse responsibility
informed consent
the smaller the needle gauge number, the ____ the needle core (opening)
bigger
where is cytology fluid discarded?
sharps container
indications for certain procedure:
cyst lesions that have thick walls and other suspicious features,
symptom relief,
eliminate masses
cyst aspiration