Categorias: Todos - skeleton - storage - diagnostic - injection

por Dustin Carpenter 1 ano atrás

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F-18 Bone Scintigraphy

F-18 bone scintigraphy uses F-18 sodium fluoride as a radiopharmaceutical for imaging the skeleton, primarily through positron emission tomography (PET). F-18 sodium fluoride accumulates predominantly in the axial skeleton, such as the vertebrae and pelvis, and around joints.

F-18 Bone Scintigraphy

F-18 Bone Scintigraphy

Procedure

Acquisition Parameters: PET

Camera Type: PET or PET/CT; Standard

Energy Peak: 511 KeV; Standard

Injection to Imaging time: 90-120 minutes; Standard

Attenuation correction: PET: cesium or germanium sources; PET/CT: CT acquisition.

Patient Position: Supine; Standard

Arm position: indication specific; Standard

Acquisition mode: 2-D or 3-D; Standard

Bed positions: Adequate to cover whole body or specific area of interest; Standard

Time/Bed positions: 2-D (2-5 minutes) 3-D (2-3 minutes)

View: Top of the head to the toes.

Radiopharmaceutical(s)
F-18 sodium fluoride

Dosing/ROA

Pediatric Dose:0.06 mCi/kg (minimum of 0.5mCi administered) I.V.

Adult Dose: 5mCi (5-10 mCi) I.V.

Storage

Store at 25°C (77°F) in a shielded container; excursions permitted to 15–30°C (59–86°F).

Use the solution within 12 hours of the EOS reference time.

How Supplied

Sodium Fluoride F 18 Injection is supplied in a multiple-dose Type I glass vial with elastomeric stopper and aluminum crimp seal containing between 370 and 7,400

MBq/mL (10–200 mCi/mL) of no carrier-added sodium fluoride F18, at the EOS reference time, in aqueous 0.9% sodium chloride solution. The total volume and total

radioactivity per vial are variable. Each vial is enclosed in a shielded container of appropriate thickness.

Adverse Reactions

No adverse reactions have been reported for Sodium Fluoride F 18 Injection based on a review of the published literature, publicly available reference sources, and adverse drug reaction reporting systems.

Warnings

Allergic Reactions: As with any injectable drug product,

allergic reactions and anaphylaxis may occur. Emergency

resuscitation equipment and personnel should be immediately

available.

Cancer Risk: Sodium Fluoride F 18 Injection may increase the risk of cancer. Use the smallest dose necessary for imaging and ensure safe handling to protect the patient and health care worker.

Pregnancy

Sodium Fluoride F 18 Injection is a radioactive diagnostic agent for positron emission tomography (PET) indicated for imaging of bone to define areas of altered osteogenic activity

Mechanism of Uptake

Fluoride F18 ion normally accumulates in the skeleton in an even fashion, with greater

deposition in the axial skeleton (e.g. vertebrae and pelvis) than in the appendicular

skeleton and greater deposition in the bones around joints than in the shafts of long

bones.

Physical Characteristics

Half-life of 109.7 minutes

F18 decays by positron (β+) emission

Cyclotron Produced

Energy: 511KeV

Patient Preparation
  1. Patient may eat and take medications as necessary before the procedure.
  2. Obtain focused history and focus on the following:

A.Clinical indication for the study, including current symptoms.

B.History of fractures, trauma, and associated bone abnormalities.

C. History of current or previous therapeutic protocols that may affect the bone scan.

D.History of surgical procedures that may affect the bone scan.

E.Review of current medications that may affect the distribution of the tracer.

F. Confirmation of pregnancy status and/or lactation.

Indications
Diagnosis of the following
  1. Neoplastic disease
  2. Occult fracture
  3. Stress reaction/stress fracture
  4. Avascular necrosis
  5. Arthritis
  6. Reflex sympathetic dystrophy
  7. Bone infarcts
  8. Bone graft viability
  9. Paget's disease
  10. Unexplained bone pain
Contraindications
Use of oral contrast (barium) within 24-48 hours of the procedure.
Pregnancy/Breastfeeding