ATERIALS

Prolongation of the life of the m.aterial used as the filter may be effected by proper care. 

Pulmonary atery (PA) As the catheter moves into the PA, the diastolic pressure will increase owing to the presence of the pulmonary valve. Normal PA systolic pressure is the same as the RV systolic pressure but the diastolic pressure rises to 10-15 mmHg. 

Rotation of the ring is necessary, since edge on" it complexing is prevented by orbital symmetry and by the aterie hindrance of aromatic hydrogen atoms. 

Additionally, human studies of atherosclerosis, mainly located in the carotid ateries and thoratic aorta, with p FlFDO PET were performed. These investigations strengthen the status of p FJEDG PET as noninvasive plaque-imaging technique [191-196]. 

A large volume of concentrated humic material solution was needed to perform the ion exchange experiments. The UV spectra of the different humic material solutions were found to be similar. The extinction coefficients, as measured at 270 mp, were also found to be identical. Since the samples seemed to be of a similar nature, a mixture of the samples from the four cores was made. The mixture was then dialyzed against distilled deionized water for a period of three weeks. The outer solution was replaced periodically. The molecular vjeight cutoff value for the dialysis membrane (gpectraporj 6) was approximately two thousand. The concentration of the interior humic material solution was monitored by UV absorption. Less than five percent of the original humic m.aterial solution passed through the membrane and was lost to the outer solution. 

Yamada, R., KlsU, K., Sato, M., Sonomura, T., Nishida, N., Tanaka, K., Shloyama, Y., Terada, M., Klmnra, M. Transcatheter aterial chem-oemholiration (T ACE) in the treatment of imresectable liver cancer. World J. Surgery 1995 19 795-800... 

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