Magnetic resonance imaging repetition time

Figure 4 A series of magnetic resonance imaging scans obtained through the left thigh of a New Zealand white rabbit bearing a V2 carcinoma before (A), immediately after (B), and 3jh after (C) the administration of 5 jimol/kg of PCI-0101 (complex 2 bisacetate counter anions). Noteworthy is the persistent, marked increase in contrast enhancement of the V2 carcinoma compared with surrounding muscle obtained under these conditions (1.5T T,-weighted pulsing sequence 300/15 repetition time/echo time). Reproduced from [26] by permission of Lippincott-Raven Publishers...

Figure 7 A P MRS spectrum from neonatal brain at 2.4T. A 125 ml VOI, localized using PRESS, was centered on the thalami. Acquisition parameters were TE 10 ms repetition time 12 s 160 averaged echoes. The numbered peaks are 1 PME 2 extracellular and intracellular Pi 3 glycerolphosphorylethanolamine and GPC 4 PCr 5, 6, and 8 y-, a-, and -NTP 7 nicotinamide dinucleotides and uridine diphosphosugars. (Reproduced with permission from Cady EB, Wylezinska M, Penrice J, Lorek A, and Amess P (1996) Quantitation of phosphorus metabolites in newborn human brain using internal water as a reference standard. Magnetic Resonance Imaging 14(3) 293-304 Elsevier.)...

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