The technical detection limit for PCBs was 3 μg / L and 1 μg / L for DDE.
If a sufficient number of EDCs is present, theoretically significant VTG inductions can occur when the individual compounds are below the technical detection limit.
One reason - perhaps the main one - is certainly the greater robustness of technical detection of gene variants compared to environmental exposures.
Based on standard curves plotted from known amounts of synthetic miR-221 and miR-18a individually, a technical detection limit of two copies for miR-221 would give a Ct value of 42, and a technical detection limit of five copies for miR-18a would give a Ct value of 47.
This has been observed by us and others before and is most likely explained by technical detection limitations due to the extremely short half-life of HIF-1 α under normoxic conditions (Semenza, 2002; Cramer et al, 2003).
Owing to these technical difficulties, detection of tumour-associated mutations in the plasma/serum has not been extensively used as a clinical tool for cancer detection.
We compared image resolution, ability to confirm technical success, detection of non-target activity, and providing conclusive information about 90Y activity within targeted tumor vascular thrombosis.
With proper diagnostic reporting technique, 90Y PET/CT consistently out-performed 90Y bremsstrahlung SPECT/CT in high-resolution imaging to confirm technical success, detection of non-target activity, and providing conclusive information about 90Y activity within targeted tumor vascular thrombosis.
In order to achieve the full potential of the ITS systems at EU level, a wide range of barriers have to be overcome, including technical issues (detection inaccuracy, uncertainty in road user trajectories), user acceptance issues (high level of unnecessary warnings, lack of suitable user interface), business models (high costs, chicken-egg problems) and legal issues (privacy, current legislation).
Completion rates, rates of technical problems, detection of ECG changes, pre- and post-intervention six minute walk test (6 MWT), cardiac depression and Quality of Life (QOL) were key measures.
The DOTS strategy has four key technical pillars: detection of smear-positive pulmonary tuberculosis using sputum microscopy, in patients presenting themselves to public clinics; directly-observed treatment with short-course chemotherapy; guaranteed continuous drug supply; and a case recording system tracking treatment outcomes.
