This issue has been dealt with in more detail in chapter 1, "Technical Aspects of CT in Practice," but the effects on the PET scan require some adjustment in the timing of the contrast injection relative to the start of the CT. In our practice, we wait 70 seconds before the injection ...
The protocol enhances the contrast when using X-ray imaging, while preventing sample motion during the scan, even with different sample orientations. Bubbles trapped during mounting and those formed during scanning (in the case of synchrotron X-ray imaging) are mitigated by multiple degassing steps...
A total of 123 patients (38%) proceeded to standard-of-care prostatectomy and template pelvic lymph node dissection and had sufficient histopathology data for evaluation (evaluable patients). Three members of a pool of six central readers independently interpreted each PET scan for the presence of ...
25, No. 10, October 2008, 1208–1215 Preparation of [13C3]-melamine and [13C3]-cyanuric acid and their application to the analysis of melamine and cyanuric acid in meat and pet food using liquid chromatography-tandem mass spectrometry P. Varelis* and R. Jeskelis National Center for Food...
For example, the scan signal driver may sequentially provide a scan signal with an on-level pulse to the scan signal lines S1 to Sm. For example, the scan signal driver may be constructed in a form of a shift register and generate a scan signal in a manner of sequentially transmitting a...
Hara, T., et al., “Development of 18F-fluoroethylcholine for cancer imaging with PET: synthesis, biochemistry, and prostate cancer imaging,” J. Nucl. Med. 43(2):187-199 (Feb. 2002). Hara, T., et al., “Imaging of brain tumor, lung cancer, esophagus cancer, colon cancer, prostat...
For SWATH-MS, an MS1 scan records a 350 to 1250 m/z range for 250 ms, and a 100 to 1800 m/z range was recorded for 33.3 ms in the high-sensitivity mode MS2 scan. One MS1 scan was followed by 100 MS2 scans, which covered a precursor m/z range from 400 to 1200. The variable...
Full scan spectra were recorded with a resolution of 70,000 using an automatic gain control (AGC) target value of 3 × 106 with a maximum injection time of 20 ms. Up to the 10 most intense 2+ - 5+ charged ions were selected for higher-energy c-trap dissociation (HCD) with a ...
The size distributions and shapes of fibrils were measured using a cantilever operated in tapping mode for image topography. The cantilever was silicon nitride with a nominal force constant of 0.08 N/m, the scan rate was set to 1 Hz [33] and Gwyddion® v. 2.54 (Czec...
Our review, in contrast, specifically aims at critically discussing and evaluating current sample preparation techniques for the microplastic analysis of soil. Since soil-specific sample preparation methods are still scarce, we also assessed methods for other solid matrices like sediment or suspended ...