Sentence examples for poor tracer from inspiring English sources

Some tumours and metastases are not detected as a result of poor tracer uptake.

The simulation results validated this assessment, as [U-C]glutamine was shown to be a poor tracer for elucidation of both the oxPPP and PC fluxes.

On Technetium scanning of the thyroid, the thyroid gland was not visualized due to poor tracer uptake (0.1%; reference range 1-41-4%

Thus, in general, organically bound H and O isotopes in animals serve as relatively good tracers of growing season precipitation, but as relatively poor tracers of distinct water sources used by animals.

On the other hand, uptake of the choline analogue, FCH, in almost all xenograft models that we have evaluated is very poor but this tracer shows excellent uptake in some tumours that can have relatively low FDG-avidity, like prostate cancer (Fig. 2).

Transects that fail were associated with insufficient advected plume transport, poor correlation between the tracer and source plumes, and potential emissions pooling conditions.

Despite the high quality of the diffusion tractography data presented here, we observed relatively poor correspondence with neuronal tracer data, particularly with regard to 3D colocalization analysis.

These findings are supported by two recent studies in which for synthetic F-ciprofloxacin, no specific binding to bacteria was observed [ 15] and poor retention of this tracer in bacteria-infected tissues in patients [ 16].

Importantly, poorly differentiated neuroendocrine cancers with little or no hormone production and a high proliferative activity usually take up F-fluorodeoxyglucose (FDG) as do most "common" cancers [ 4, 5], while sensitivity of NET tracers is poor.

Sampling of tracer concentrations at poor times will result in inaccurate estimates of D and the flow velocity (u).

The lack of specificity of the most common PET tracers and the poor resolution of the PET cameras are seen as the major limitations of PET imaging [3, 5, 14].