The phrase 'lower image quality' is correct and can be used in written English.
For example, "If you send a lower resolution image, it will result in lower image quality".
But in order to avoid trading off more pixels for lower image quality, Apple has introduced 'deep trench isolation', which separates photo diodes to help maintain accurate color quality and reduce crosstalk and noise.
In the case of suspected fresh haemorrhage, since it is hyperdense in relation to the surrounding brain tissue, a lower image quality may be sufficient for diagnosis.
However, iterative reconstruction algorithms in CTE have shown that a decrease of effective doses to less than 2 mSv is possible with considerably lower image quality but without missing clinically significant diagnostic information [26, 27].
The reason why our results in PET/MRI were significantly lower might be the use of a body coil (the purpose of the study), which inherently has a lower image quality.
The reader should however be aware of the lower image quality of water images with respect to true unenhanced images (Fig. 3a), as also reported on dual-source DECT [20].
An image with a higher MSE does not necessarily have perceptually lower image quality; similarly, two images that are perceived with equal quality are likely to have different values in terms of MSE or PSNR.
An increased background activity with a consequent lowered image quality was reported in a series of patients with pancreatic cancer who were subjected to chronic hyperglycaemia [6].
After glucose loading, an increased background activity leading to a lowered image quality was reported in a series of patients with colorectal tumours [17], as well as a somewhat more muscular FDG uptake in a number of patients with head and neck cancer [3].
However, due to the significantly lowered sensitivity, coupled with lower perceived image quality scores and a substantial number of downgraded assessments at 5 min-per-view, the standard 10-min-per-view acquisitions for DC-MBI are preferred.
In addition, maternal factors and the gestational age may lower the image quality.
Heavier patients show more photon attenuation and higher scatter fractions, resulting in lower PET image quality for these patients when using a fixed tracer activity and scan time.
