文献检索文档翻译深度研究
Suppr Zotero 插件Zotero 插件
邀请有礼套餐&价格历史记录

新学期,新优惠

限时优惠:9月1日-9月22日

30天高级会员仅需29元

1天体验卡首发特惠仅需5.99元

了解详情
不再提醒
插件&应用
Suppr Zotero 插件Zotero 插件浏览器插件Mac 客户端Windows 客户端微信小程序
高级版
套餐订阅购买积分包
AI 工具
文献检索文档翻译深度研究
关于我们
关于 Suppr公司介绍联系我们用户协议隐私条款
关注我们

Suppr 超能文献

核心技术专利:CN118964589B侵权必究
粤ICP备2023148730 号-1Suppr @ 2025

应用图像分析技术,从 3D MRI 对完整人肾的锥体、锥体结构、肾小球分布和病理学进行测绘。

Image analysis techniques to map pyramids, pyramid structure, glomerular distribution, and pathology in the intact human kidney from 3-D MRI.

机构信息

Department of Pediatrics, University of Virginia Children's Hospital, Charlottesville, Virginia.

School of Computing, Informatics, Decision Systems Engineering, Arizona State University, Tempe, Arizona.

出版信息

Am J Physiol Renal Physiol. 2021 Sep 1;321(3):F293-F304. doi: 10.1152/ajprenal.00130.2021. Epub 2021 Jul 20.


DOI:10.1152/ajprenal.00130.2021
PMID:34282957
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8530750/
Abstract

Kidney pathologies are often highly heterogeneous. To comprehensively understand kidney structure and pathology, it is critical to develop tools to map tissue microstructure in the context of the whole, intact organ. Magnetic resonance imaging (MRI) can provide a unique, three-dimensional view of the kidney and allows for measurements of multiple pathological features. Here, we developed a platform to systematically render and map gross and microstructural features of the human kidney based on three-dimensional MRI. These features include pyramid number and morphology as well as the associated medulla and cortex. In a subset of these kidneys, we also mapped individual glomeruli and glomerular volumes using cationic ferritin-enhanced MRI to report intrarenal heterogeneity in glomerular density and size. Finally, we rendered and measured regions of nephron loss due to pathology and individual glomerular volumes in each pyramidal unit. This work provides new tools to comprehensively evaluate the kidney across scales, with potential applications in anatomic and physiological research, transplant allograft evaluation, biomarker development, biopsy guidance, and therapeutic monitoring. These image rendering and analysis tools could eventually impact the field of transplantation medicine to improve longevity matching of donor allografts and recipients and reduce discard rates through the direct assessment of donor kidneys. We report the application of cutting-edge image analysis approaches to characterize the pyramidal geometry, glomerular microstructure, and heterogeneity of the whole human kidney imaged using MRI. This work establishes a framework to improve the detection of microstructural pathology to potentially facilitate disease monitoring or transplant evaluation in the individual kidney.

摘要

肾脏病变通常具有高度异质性。为了全面了解肾脏结构和病理,开发能够在整体完整器官背景下对组织微观结构进行映射的工具至关重要。磁共振成像 (MRI) 可以提供肾脏的独特三维视图,并允许对多种病理特征进行测量。在这里,我们开发了一个基于三维 MRI 系统地呈现和映射人类肾脏大体和微观结构特征的平台。这些特征包括锥体数量和形态以及相关的髓质和皮质。在这些肾脏的一部分中,我们还使用阳离子铁蛋白增强 MRI 绘制了单个肾小球及其体积,以报告肾小球密度和大小的肾内异质性。最后,我们呈现并测量了由于病变导致的肾单位损失和每个锥体单位中单个肾小球的体积。这项工作提供了全面评估肾脏不同尺度的新工具,具有在解剖学和生理学研究、移植同种异体评估、生物标志物开发、活检指导和治疗监测等方面的潜在应用。这些图像呈现和分析工具最终可能会影响移植医学领域,通过直接评估供体肾脏,提高供体同种异体的寿命匹配和降低丢弃率。我们报告了应用前沿的图像分析方法来描述使用 MRI 成像的整个人类肾脏的锥体几何形状、肾小球微观结构和异质性。这项工作建立了一个框架,以提高对微观结构病理学的检测能力,从而有可能促进个体肾脏的疾病监测或移植评估。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7eed/8530750/304e50e2038f/f-00130-2021r01.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7eed/8530750/304e50e2038f/f-00130-2021r01.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7eed/8530750/304e50e2038f/f-00130-2021r01.jpg

相似文献

[1]
Image analysis techniques to map pyramids, pyramid structure, glomerular distribution, and pathology in the intact human kidney from 3-D MRI.

Am J Physiol Renal Physiol. 2021-9-1

[2]
Mapping single-nephron filtration in the isolated, perfused rat kidney using magnetic resonance imaging.

Am J Physiol Renal Physiol. 2022-11-1

[3]
Measuring glomerular number and size in perfused kidneys using MRI.

Am J Physiol Renal Physiol. 2011-3-16

[4]
MRI-based glomerular morphology and pathology in whole human kidneys.

Am J Physiol Renal Physiol. 2014-3-19

[5]
Measuring rat kidney glomerular number and size in vivo with MRI.

Am J Physiol Renal Physiol. 2017-11-1

[6]
Measuring the intrarenal distribution of glomerular volumes from histological sections.

Am J Physiol Renal Physiol. 2016-6-1

[7]
In vivo measurements of kidney glomerular number and size in healthy and Os mice using MRI.

Am J Physiol Renal Physiol. 2019-7-24

[8]
Combining new tools to assess renal function and morphology: a holistic approach to study the effects of aging and a congenital nephron deficit.

Am J Physiol Renal Physiol. 2017-9-1

[9]
Use of Cationized Ferritin Nanoparticles to Measure Renal Glomerular Microstructure with MRI.

Methods Mol Biol. 2016

[10]
The emerging role of MRI in quantitative renal glomerular morphology.

Am J Physiol Renal Physiol. 2013-3-20

引用本文的文献

[1]
Mapping the arterial vascular network in an intact human kidney using hierarchical phase-contrast tomography.

Npj Imaging. 2025-9-3

[2]
Fewer medullary pyramids in the living kidney donor are associated with graft failure in the recipient.

Am J Transplant. 2025-7

[3]
Chronic kidney disease in children: an update.

Clin Kidney J. 2023-4-24

[4]
Use of novel structural features to identify urinary biomarkers during acute kidney injury that predict progression to chronic kidney disease.

BMC Nephrol. 2023-6-19

[5]
Mapping the blood vasculature in an intact human kidney using hierarchical phase-contrast tomography.

bioRxiv. 2024-7-5

[6]
Current and potential methods to assess kidney structure and morphology in term and preterm neonates.

Anat Rec (Hoboken). 2025-4

本文引用的文献

[1]
A Single Immunization with Spike-Functionalized Ferritin Vaccines Elicits Neutralizing Antibody Responses against SARS-CoV-2 in Mice.

ACS Cent Sci. 2021-1-27

[2]
Small Blob Detector Using Bi-Threshold Constrained Adaptive Scales.

IEEE Trans Biomed Eng. 2021-9

[3]
Broad Neutralization Responses Against Oncogenic Human Papillomaviruses Induced by a Minor Capsid L2 Polytope Genetically Incorporated Into Bacterial Ferritin Nanoparticles.

Front Immunol. 2020-12-4

[4]
Mapping nephron mass in vivo using positron emission tomography.

Am J Physiol Renal Physiol. 2021-2-1

[5]
The Evolving Role of Novel Biomarkers in Glomerular Disease: A Review.

Am J Kidney Dis. 2021-1

[6]
Magnetic resonance imaging accurately tracks kidney pathology and heterogeneity in the transition from acute kidney injury to chronic kidney disease.

Kidney Int. 2021-1

[7]
Integration of genetic and histopathology data in interpretation of kidney disease.

Nephrol Dial Transplant. 2020-7-1

[8]
Recent findings on the clinical utility of renal magnetic resonance imaging biomarkers.

Nephrol Dial Transplant. 2020-6-1

[9]
Mapping vascular and glomerular pathology in a rabbit model of neonatal acute kidney injury using MRI.

Anat Rec (Hoboken). 2020-10

[10]
Improved small blob detection in 3D images using jointly constrained deep learning and Hessian analysis.

Sci Rep. 2020-1-15

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

推荐工具

医学文档翻译智能文献检索