Title
Correction of transmission contamination in SPECT imaging: Simultaneous emission and transmission tomography with 67Ga/153Gd,Used
Sold by Ergodebooks, an authorized reseller.
Returns accepted within 30 days | support@ergodebooks.com
Shipping Information
- Free Standard Shipping — United States only
- Processing Time: 1–3 business days
- Estimated Delivery: 3–5 business days after dispatch
- Double-boxed, fully insured & discreetly packaged
- Tracking number sent via email once dispatched
- Orders over $250 require signature upon delivery. Taxes calculated at checkout.
Returns & Refund
Returns accepted within 30 days of delivery.
Damaged or Defective Item
Free return shipping + replacement or full refund
Wrong Item Received
Free return shipping + replacement or full refund
Change of Mind
Return shipping at customer's expense · 25% restocking fee applies
Payment Option
The transmission and emission data are acquired simultaneously with 153Gd and 67Ga respectively. The distribution of scatter and spill over in transmission window were estimated. The scatter function, spillover and scatter fractions were estimated at different depth in different media and the relationship was established. The corrected transmission projections were reconstructed and the corrected attenuation map was scaled to take into account the difference in photon energies of the two radionuclides. Combined emission images of a thorax phantom and human volunteer were reconstructed using the OSEM algorithm. It was found that the bi exponential scatter function is independent of material and depth of source. The scatter fraction and spillover both depend on the thickness and density of attenuating material. Corrected transmission data using an iterative process improved the contrast and quantitative accuracy. We could conclude that transmission based correction method can be applied to improve the attenuation map used in attenuation correction of SPECT images.
⚠️ WARNING (California Proposition 65):
This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, please visit www.P65Warnings.ca.gov.