Sentence examples for attenuation template from inspiring English sources

PET-MR attenuation correction was based on a built-in CT-based attenuation template of the phantom.

Phantom measurements were performed since for these, both a reference scan without hardware attached and a CT-based attenuation template including hardware could be acquired.

A transmission scan using computed tomography (CT) or rotating rod sources is performed to obtain an attenuation template of the corresponding hardware component [21 24, 30 32].

The proposed strategy features a pre-acquired CT-based 3D attenuation template of the NEMA IQ phantom in conjunction with a phantom holder providing exact and reproducible repositioning of the phantom on the systems patient table.

For Compton scatter correction the reconstructed emission image, the patient MR-derived attenuation map and a CT-derived attenuation template of the MR coils are used as input for the simulation.

Here, MR-detectable markers can be used to perform an automatic non-rigid co-registration of the pre-acquired 3D CT attenuation template to the individual position and shape of the flexible RF during the cardiac PET/MRI examination [26].

Figure 6 presents the xMLAA-obtained attenuation maps in comparison with the CT-based attenuation templates of the headphones.

This is usually taken care of by the vendors and the relevant attenuation templates are automatically selected and incorporated into the attenuation map in clinical routine [26].

Registration-based approaches, aligning CT-based attenuation templates with the current patient position, have been proposed but are not used in clinical routine.

In hybrid PET/MR imaging, AC for stationary hardware components such as patient table and MR head coil is straightforward, employing CT-derived attenuation templates.

Since neither a reference scan nor appropriate CT-based attenuation templates were available for the patient data, a thorough quantitative evaluation was not possible.