Interventional Procedures Flashcards
BIRAD system
Breast Imaging And Reporting System And Data is a standardized mammography reporting system that can be used as a coding and assessment system
Capsular contracture or firm rigidity to the breast…
is a complication implant augmentation. It is often the body’s normal response to the presence of a foreign object. Fibrous capsule forms around the implant. Ultrasound and MRI are proven adjunctive evaluation tools.
Cyst aspiration
The removal of the content of a cyst. Performed to relieve pain or to assess the cyst’s contents. Often performed under ultrasound guidance.
Stereotactic Breast Localization:
A method used to biopsy non-palpable lesions. Images taken at different angles to triangulate the exact coordinates of a lesion. A computer calculates the lesion’s location. Lesions can be biopsied after localization or the stern-localization can be a prelude to an FNAB or core biopsy.
Types of stereotactic Units:
Add-on Units attach to a regular mammography unit and with the patient seated.
Dedicated Prone Unit - patient lays prone with arm and breast protruding through the table opening. Most prone table allow for 360 degree tube rotation.
Preoperative localization
A prelude to a surgical biopsy and can be used if stereo localization is not available. Performed under mammography, ultrasound or MR guidance.
- The radiologist inserts a long needle with a hooked wire into the breast-beyond lesion
- The needle is withdrawn leaving the hooked wire in place.
- The hooked end of the wire holds the wire within the breast tissue.
Types of breast biopsies:
Fine needle aspiration biopsy (FNAB): removes cell samples. The procedure uses a 22 to 25-gauge needle and is generally recommend that the cytotechnologist evaluate the removed sample before the patient leaves the department.
Minimal Invasive Biopsy: removes tissue samples and can include
*Core Needle Biopsy (CNB) using a large-core needle with a special cutting edge (11-16) to remove core samples.
Vacuum Biopsy sometimes uses a local anesthetic and can be performed with mammography, ultrasound or MR guidance.
Large core biopsy removes a larger volume of tissue then a core biopsy and is not commonly used
Open surgical biopsy
Radio frequency biopsy
Lymph Node biopsy
Modality Base Biopsy
Mammography
Ultrasound Guided
MR guided
Using the BIRAD system, what category of lesion is usually referred for biopsy?
BIRAD 4 and above
What is the name given to the procedure whereby the contents of a cyst are removed?
a method of removing fluid from a cyst using a needle. Aspiration is often done under ultrasound guidance.
Name the the technique used to triangulate a lesion within the breast and calculate it’s location in three dimensions
Sterotactic
What is the needle gauge range commonly used for FNAB?
22-25
The lowest false negative rate is obtained using which biopsy technique, open, core, or FNAB
Open
Which modality will best biopsy breast calcifications?
Mammography
Give two reasons for imaging the specimen .
To ensure the lesions was removed and to ensure the margins are clear