Title
Correction of transmission contamination in SPECT imaging: Simultaneous emission and transmission tomography with 67Ga/153Gd,Used
Delivery time: 8-12 business days (International)
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.
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Shipping & Returns
Shipping
We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
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Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Shopify Payments, Shop Pay and more.