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evaluation of renal function using diffusion weighted imaging and diffusion tensor imaging in type 2
null
《医学前沿(英文)》 2014年 第8卷 第4期 页码 471-476 doi: 10.1007/s11684-014-0365-8
This work aims to estimate the value of diffusion weighted imaging (DWI) and diffusion tensor imaging (DTI) in detecting early-stage kidney injury in type 2 diabetic patients with normoalbuminuria (NAU) versus microalbuminuria (MAU) prospectively. A total of 30 T2DM patients with normal kidney function were recruited and assigned to the NAU group (n = 14) or MAU group (n= 16) according to 8 h overnight urinary albuminuria excretion rate (AER) results. A contemporary cohort of health check-up recipients were included as controls (n = 12). DWI and DTI scans were performed on bilateral kidney using SE single-shot EPI, and apparent diffusion coefficient (ADC) and fractional anisotropy (FA) of the renal parenchyma was determined from ADC and FA maps of the three groups. ADC and FA values were compared among the three groups. According to DWI with a b value of 400 s/mm2, the MAU and NAU groups showed significantly lowered mean ADC values compared with the healthy controls (P<0.01). The mean ADC in the MAU group [(2.22±0.07)×10–3 mm2/s] was slightly lower than that of the NAU group [(2.31±0.22)×10–3 mm2/s], but this difference was not statistically significant (P>0.05). The FA value in the MAU group was higher than that in the control group (0.45±0.07 vs. 0.39±0.03, P = 0.004) but did not differ from that in the NAU group (0.42±0.03) (P>0.05). ADC and FA values may be more sensitive than urine AER in reflecting early-stage kidney injury and, hence, may facilitate earlier detection and quantitative evaluation of kidney injury in T2DM patients. Combined evaluation of ADC and FA values may provide a better quantitative approach for identifying diabetic nephropathy at early disease stages.
关键词: type 2 diabetes mellitus microalbuminuria diffusion weighted imaging diffusion tensor imaging early-stage kidney injury
Carbon dots-based fluorescence sensor for two-photon imaging of pH in diabetic mice
《化学科学与工程前沿(英文)》 2023年 第17卷 第3期 页码 298-306 doi: 10.1007/s11705-022-2212-9
In vivo imaging of hematopoietic stem cell development in the zebrafish
Panpan Zhang, Feng Liu
《医学前沿(英文)》 2011年 第5卷 第3期 页码 239-247 doi: 10.1007/s11684-011-0123-0
关键词:
hematopoietic stem cell
hematopoiesis
Anefficient quadrature demodulator for medical ultrasound imaging
Hao ZHOU,Yin-fei ZHENG
《信息与电子工程前沿(英文)》 2015年 第16卷 第4期 页码 301-310 doi: 10.1631/FITEE.1400205
关键词: B-mode ultrasound imaging Color flow imaging Quadrature demodulation Finite impulse response filter
光场成像技术:模型、标定、重建及应用 Review
Hao ZHU, Qing WANG, Jingyi YU
《信息与电子工程前沿(英文)》 2017年 第18卷 第9期 页码 1236-1249 doi: 10.1631/FITEE.1601727
关键词: 光场成像;全光函数;成像模型;标定;重建
Liangqian Tong, Ming Zhao, Shu Zhu, Jing Chen
《医学前沿(英文)》 2011年 第5卷 第4期 页码 379-387 doi: 10.1007/s11684-011-0162-6
关键词: nanoparticles superparamagnetic iron oxide targeted therapy molecular imaging cancer
《化学科学与工程前沿(英文)》 2022年 第16卷 第1期 页码 103-111 doi: 10.1007/s11705-021-2064-8
关键词: UDP-glucuronosyltransferase 1A8 fluorescent probe subtype selectivity fluorescence imaging
《医学前沿(英文)》 页码 993-1005 doi: 10.1007/s11684-023-0989-7
Iron oxide nanoparticle-based theranostics for cancer imaging and therapy
Xiaoqing REN,Hongwei CHEN,Victor YANG,Duxin SUN
《化学科学与工程前沿(英文)》 2014年 第8卷 第3期 页码 253-264 doi: 10.1007/s11705-014-1425-y
关键词: theranostics iron oxide nanoparticles MRI drug delivery photothermal therapy photodynamic therapy
High resolution satellite imaging sensors for precision agriculture
Chenghai YANG
《农业科学与工程前沿(英文)》 2018年 第5卷 第4期 页码 393-405 doi: 10.15302/J-FASE-2018226
The central concept of precision agriculture is to manage within-field soil and crop growth variability for more efficient use of farming inputs. Remote sensing has been an integral part of precision agriculture since the farming technology started developing in the mid to late 1980s. Various types of remote sensors carried on ground-based platforms, manned aircraft, satellites, and more recently, unmanned aircraft have been used for precision agriculture applications. Original satellite sensors, such as Landsat and SPOT, have commonly been used for agricultural applications over large geographic areas since the 1970s, but they have limited use for precision agriculture because of their relatively coarse spatial resolution and long revisit time. Recent developments in high resolution satellite sensors have significantly narrowed the gap in spatial resolution between satellite imagery and airborne imagery. Since the first high resolution satellite sensor IKONOS was launched in 1999, numerous commercial high resolution satellite sensors have become available. These imaging sensors not only provide images with high spatial resolution, but can also repeatedly view the same target area. The high revisit frequency and fast data turnaround time, combined with their relatively large aerial coverage, make high resolution satellite sensors attractive for many applications, including precision agriculture. This article will provide an overview of commercially available high resolution satellite sensors that have been used or have potential for precision agriculture. The applications of these sensors for precision agriculture are reviewed and application examples based on the studies conducted by the author and his collaborators are provided to illustrate how high resolution satellite imagery has been used for crop identification, crop yield variability mapping and pest management. Some challenges and future directions on the use of high resolution satellite sensors and other types of remote sensors for precision agriculture are discussed.
关键词: high resolution satellite sensor multispectral imagery precision agriculture spatial resolution temporal resolution
Transient imaging with a time-of-flight cameraand its applications
Jing-yu LIN, Ri-hui WU, Hong-man WANG, Ye-bin LIU
《信息与电子工程前沿(英文)》 2017年 第18卷 第9期 页码 1268-1276 doi: .org/10.1631/FITEE.1700556
关键词: Transient imaging Time-of-flight(ToF) camera Scattering media Around corners
《化学科学与工程前沿(英文)》 2022年 第16卷 第1期 页码 112-120 doi: 10.1007/s11705-021-2075-5
关键词: fluorescent drug lysosomal anticancer zebrafish nude-mouse tumour imaging
《结构与土木工程前沿(英文)》 2021年 第15卷 第3期 页码 643-651 doi: 10.1007/s11709-021-0709-9
关键词: 3D pore volume distribution X-ray tomography 3D shape factor heat flow
Imaging technologies for plant high-throughput phenotyping: a review
Yong ZHANG, Naiqian ZHANG
《农业科学与工程前沿(英文)》 2018年 第5卷 第4期 页码 406-419 doi: 10.15302/J-FASE-2018242
Phenomics studies a variety of phenotypic plant traits and is the key to understanding genetic functions and environmental effects on plants. With the rapid development of genomics, many plant phenotyping platforms have been developed to study complex traits related to the growth, yield, and adaptation to biotic or abiotic stress, but the ability to acquire high-throughput phenotypic data has become the bottleneck in the study of plant genomics. In recent years, researchers around the world have conducted extensive experiments and research on high-throughput, image-based phenotyping techniques, including visible light imaging, fluorescence imaging, thermal imaging, spectral imaging, stereo imaging, and tomographic imaging. This paper considers imaging technologies developed in recent years for high-throughput phenotyping, reviews applications of these technologies in detecting and measuring plant morphological, physiological, and pathological traits, and compares their advantages and limitations.
关键词: high-throughput phenotyping imaging technology morphological traits pathological traits physiological traits
Fei Zhang,Minghao Liao,Mingbo Pu,Yinghui Guo,Lianwei Chen,Xiong Li,Qiong He,Tongtong Kang,Xiaoliang Ma,Yuan Ke,Xiangang Luo,
《工程(英文)》 doi: 10.1016/j.eng.2023.07.008
标题 作者 时间 类型 操作
evaluation of renal function using diffusion weighted imaging and diffusion tensor imaging in type 2
null
期刊论文
Synthesis and application of superparamagnetic iron oxide nanoparticles in targeted therapy and imaging
Liangqian Tong, Ming Zhao, Shu Zhu, Jing Chen
期刊论文
A highly selective fluorescent probe for real-time imaging of UDP-glucuronosyltransferase 1A8 in living
期刊论文
of the mechanisms of acupuncture in the treatment of migraine based on functional magnetic resonance imaging
期刊论文
Iron oxide nanoparticle-based theranostics for cancer imaging and therapy
Xiaoqing REN,Hongwei CHEN,Victor YANG,Duxin SUN
期刊论文
Transient imaging with a time-of-flight cameraand its applications
Jing-yu LIN, Ri-hui WU, Hong-man WANG, Ye-bin LIU
期刊论文
Novel lysosome-targeted anticancer fluorescent agents used in zebrafish and nude mouse tumour imaging
期刊论文
Characterization of 3D microstructure, thermal conductivity, and heat flow of cement-based foam using imaging
期刊论文