@article{oai:repo.qst.go.jp:00043562, author = {Osuga, Toshiaki and Obata, Takayuki and Ikehira, Hiroo and 大須賀 敏明 and 小畠 隆行 and 池平 博夫}, issue = {3}, journal = {Magnetic Resonance Imaging}, month = {Apr}, note = {Observations using MRI were performed for the motion of heavy water injected into a hollow fiber dialyzer. A cylindrical dialyzer houses a bundle of 10,000 hollowe fibers. Because blood components permeate through the hollow fiber membrane from the interior to the exterior of the hollow fiber, which is the dialysate flow path uniformity of dialysate flow is required. The dialyzer was initially filled with saline and heavy water was injected into the inlet port of the dialysate flow path. MRI tuned for protons could distinguish the injected heavy water from the already present saline. Due to the specific gravity difference, MRI could observe the sedimentation of the injected heavy water flowing beneath the already present saline. The uniformity of the dialysate flow was supported by the finding that the injected heavy water brought about uniform sedimenation and distributed the already present saline uniformly throughout the entire volume of the dialyzer.}, pages = {413--416}, title = {Proton magnetic resonance imaging of flow motion of heavy water injected into a hollow fiber dialyzer filled with saline}, volume = {22}, year = {2004} }