Functional magnetic resonance imaging(fMRI) is em-ployed in many behavior analysis studies, with blood oxygen level dependent-(BOLD-) contrast imaging being the main method used to generate images. The use of BOLD-con...Functional magnetic resonance imaging(fMRI) is em-ployed in many behavior analysis studies, with blood oxygen level dependent-(BOLD-) contrast imaging being the main method used to generate images. The use of BOLD-contrast imaging in f MRI has been refined over the years, for example, the inclusion of a spin echo pulse and increased magnetic strength were shown to produce better recorded images. Taking careful precautions to control variables during measurement, comparisons between different specimen groups can be illustrated by f MRI imaging using both quantitative and qualitative methods. Differences have been observed in comparisons of active and resting, developing and aging, and defective and damaged brains in various studies. However, cognitive studies using f MRI still face a number of challenges in interpretation that can only be overcome by imaging large numbers of samples. Furthermore, f MRI studies of brain cancer, lesions and other brain pathologies of both humans and animals are still to be explored.展开更多
本文报告用 Aloka SSD-60 B 型多用途超声诊断仪对109例前列腺疾患进行了检查,其中慢性前列腺炎51例,前列腺增生43例,前列腺结石2例,前列腺结节5例,前列腺癌8例,并以12名正常人作为对照,对正常人和各种前列腺疾患的超声图象作了描述。...本文报告用 Aloka SSD-60 B 型多用途超声诊断仪对109例前列腺疾患进行了检查,其中慢性前列腺炎51例,前列腺增生43例,前列腺结石2例,前列腺结节5例,前列腺癌8例,并以12名正常人作为对照,对正常人和各种前列腺疾患的超声图象作了描述。在43例前列腺增生中有13例经手术证实,超声对前列腺大小的测值与手术时的测值有密切的关系.展开更多
文摘Functional magnetic resonance imaging(fMRI) is em-ployed in many behavior analysis studies, with blood oxygen level dependent-(BOLD-) contrast imaging being the main method used to generate images. The use of BOLD-contrast imaging in f MRI has been refined over the years, for example, the inclusion of a spin echo pulse and increased magnetic strength were shown to produce better recorded images. Taking careful precautions to control variables during measurement, comparisons between different specimen groups can be illustrated by f MRI imaging using both quantitative and qualitative methods. Differences have been observed in comparisons of active and resting, developing and aging, and defective and damaged brains in various studies. However, cognitive studies using f MRI still face a number of challenges in interpretation that can only be overcome by imaging large numbers of samples. Furthermore, f MRI studies of brain cancer, lesions and other brain pathologies of both humans and animals are still to be explored.
文摘本文报告用 Aloka SSD-60 B 型多用途超声诊断仪对109例前列腺疾患进行了检查,其中慢性前列腺炎51例,前列腺增生43例,前列腺结石2例,前列腺结节5例,前列腺癌8例,并以12名正常人作为对照,对正常人和各种前列腺疾患的超声图象作了描述。在43例前列腺增生中有13例经手术证实,超声对前列腺大小的测值与手术时的测值有密切的关系.
