Rad T 275

Mammography

Types of Mammography

• Diagnostic– Patients with symptoms or risk factors

• Screening– Asymptomatic patients

Mammography Equipment

• High frequency generators

• Target material– Molybdenum– Rhodium– Tungsten

• FSS– 0.1/0.3mm

Mammo Equip cont.

• Filtration– Inherent 0.1 mm Al eq

• 23 degree target angle and tube tilt• Heel effect

– Anode is farthest from the chest wall

• Compression– Uniform thickness– Reduced OID– Less thickness, less scatter, lower dose

Mammo equip cont.

• Grids– Moving grids with 4:1 or 5:1 ratios

• AEC– Necessary due to differences in breast

composition

Cyst

Infiltrating duct carcinoma

Duct carcinomaIn situ

Cyst

FibroadenomaNon cancerous

Implant rupture

Invasive ductal and lobular carcinoma

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