However, prevalence rates vary widely due to different imaging modalities, different patient selection criteria, and the prevalence of qualitative (as opposed to quantitative) assessments [23], [25], [26], [27], [28], [29], [30], [31], [32], [33], [34].
Previous studies showed poor reproducibility and inconsistent accuracy and sensitivity of interim PET/CT due to different treatment modalities and response criteria.
This wide variance appears to be due to different diagnostic modalities used to detect the disease, the changed criteria for the classification of SS, previous failure to separate out patients with primary or secondary SS and referral bias in studies originating from large academic centres.
7 10–12 This wide variance appears to be due to different diagnostic modalities used to detect the disease, the changed criteria for the classification of SS, previous failure to separate out patients with primary or secondary SS and referral bias in studies originating from large academic centres.
By averagely, the increase in transportation costs is less than 20percentt, even though the variation is large between these four markets due to different modes and modality.
Previous results on the correlation of 18F-FDG and MRI signals with clinical parameters were ambiguous, probably due to different characteristics of these modalities [16, 37, 38].
Meta-analyses have been difficult to perform due to different methodological approaches, treatment modalities and rehabilitation programs.
However, the reported use was higher than for pharmacy students in the US [ 6], the UK [ 5] and Hong Kong [ 17] which is possibly due to different time frames and modalities of CAM use being investigated.
We found that the cutoff value of 2.14 had a relatively high specificity (ratio of heart to skeletal muscle) in T2-weighted-STIR images, but a comparable or even lower sensitivity as compared to others [ 24, 26– 28] which may be due to different study population and CMR modalities.
Due to different mechanisms of action, we expect that the combined modalities will be more effective than either modality alone.
