To assess whether a phantom scan is required for scanner characterisation, a similar process as described above was performed on non-calibrated database and follow-up data.
Blood sampling during SPECT and PET scans is required for kinetic modelling, to determine blood parameters during the scan, such as the concentration of glucose or the extent of radiotracer metabolism.
In fact, In-Zevalin scan is required for Y-Zevalin therapy by US FDA to measure organ-specific accumulation and determine whether pretreatment dosimetry is necessary.
All samples exhibited strong EPR signals, thus only one scan was required for each melanin.
Since water is present at high concentration, only eight scans were required for this.
In case a CT scan was required for assessment of tumour response, this was carried out every three cycles.
However, dynamic scans are required for kinetic analysis, which are not readily available in clinical settings [ 34].
Clinical (dysuria, pollakisuria, fever or shivering), laboratory (urine sedimentation profiles, urinary tract cultures), medical and/or radiological data (ultrasound or computed tomography scans) were required for the confirmation of infection in the absence of other signs or explications.
A greater understanding of the need for four-dimensional PET scanning is required.
Therefore, line-to-line phase calculation needs to be employed, yet 50 to 100 kHz A-scan rate limits the frame rate since sufficient A-scan density is required for Doppler imaging.
