Secondary oxalate nephropathy in an athletic woman with a duplex collecting system and ureteral fibrosis

Renal parenchymal transit time of the recently introduced radiopharmaceutical 99mTc-MAG3 (mercaptoacetylglycylglylcylglycinel) was measured in 37 kidneys, using factor analysis to separate parenchymal activity from that in the collecting system. A new factor algorithm was employed, based on prior interpolative background subtraction and use of the fact that the initial slope of the collecting system factor time-activity curve must be zero. The only operator intervention required was selection of a rectangular region enclosing the kidney (by identifying two points at opposite corners). Transit time was calculated from the factor time-activity curves both by deconvolution of the parenchymal factor curve and also by measuring the appearance time for collecting system activity from the collecting system factor curve. There was substantial agreement between the two methods. Factor analysis led to a narrower range of normal values than a conventional cortical region-of-interest method, presumably by decreasing crosstalk from the collecting system. In preliminary trials, the parenchymal transit time did not well separate four obstructed from seventeen unobstructed kidneys, but it successfully (p <0.05) separated six transplanted kidneys with acute rejection or acute tubular necrosis from 10 normal transplants.

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Research of mobile forest data collecting system based on public information platform in smart city

Remote Sensing and Smart City ◽

10.2495/rssc140011 ◽

2014 ◽

Author(s):

J. Shao ◽

L. Peng ◽

T.H. Chi ◽

L.N. Yang ◽

X.L. Zhao

Keyword(s):

Smart City ◽

Public Information ◽

Information Platform ◽

Data Collecting ◽

Collecting System

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Faculty Opinions recommendation of Dietary sodium intake regulates the ubiquitin-protein ligase nedd4-2 in the renal collecting system.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.1032830.374530 ◽

2006 ◽

Author(s):

Heini Murer

Keyword(s):

Sodium Intake ◽

Dietary Sodium ◽

Ubiquitin Protein Ligase ◽

Collecting System

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Faculty Opinions recommendation of Multi-detector row CT urography of normal urinary collecting system: furosemide versus saline as adjunct to contrast medium.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.1040179.489106 ◽

2006 ◽

Author(s):

Stephen Solomon

Keyword(s):

Contrast Medium ◽

Ct Urography ◽

Collecting System ◽

Urinary Collecting System

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Obstructive uropathy in the context of ureteroinguinal hernia: experience of challenges in surgical management of an unwell patient

BMJ Case Reports ◽

10.1136/bcr-2020-235060 ◽

2020 ◽

Vol 13 (8) ◽

pp. e235060

Author(s):

Mitchell Egerton Barns ◽

Arvind Vasudevan ◽

Emma Lucy Marsdin

Keyword(s):

Obstructive Uropathy ◽

Anatomical Variation ◽

Surgical Patients ◽

Definitive Treatment ◽

Ureteric Stent ◽

Common Presentation ◽

Iatrogenic Damage ◽

Vesicoureteric Junction ◽

Collecting System

This case exemplifies an unusual anatomical variation of a common presentation and highlights the importance of perioperative diagnosis and planning in complex surgical patients. A 72-year-old comorbid man presented to the emergency department with an infected obstructed right kidney secondary to an obstructing 12 mm vesicoureteric junction calculi. However, imaging also showed concurrent ureteroinguinal hernia associated with a 130 cm-long ureter, too long for conventional treatment with a ureteric stent. Acutely, the patient’s collecting system was decompressed via nephrostomy, but due to the rarity of this anatomical variation, definitive treatment had to be rethought to help reduce the risk of iatrogenic damage and the associated long-term complications.

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A European scale monitoring system to assess water quality of multi-national river basins in the accession countries

Water Science & Technology ◽

10.2166/wst.2003.0550 ◽

2003 ◽

Vol 48 (10) ◽

pp. 103-110 ◽

Cited By ~ 2

Author(s):

J. Fehér ◽

A. Lázár

Keyword(s):

Water Resources ◽

Subsurface Water ◽

Nutrient Concentrations ◽

Environmental Assessments ◽

Data Collecting ◽

Accession Countries ◽

Catchment Size ◽

Environment Agency ◽

Collecting System

In the middle of the 1990s the European Environment Agency (EEA) started to develop a data collecting system for surface and subsurface water resources for assessing pressures, states and impacts on European water resources. The main objective of this system was to provide reliable, comparable, homogenous information, and support integrated environmental assessments at European level. The data collecting system for water is called Eurowaternet. The extent and information content of the network makes not only pan-European, but also regional or thematic environmental assessments possible. An extensive programme started in 1997 to support the Phare countries in their accession to the EU with implementation of this data collecting system in their countries. The paper briefly introduces the methodology of the system, but it focuses more on the application of the system in the accession countries, highlighting, through examples, the usefulness of the implemented network and assembled database. The examples present - among several other possible ones - trends of average nutrient concentrations; relationships between catchment size and annual average nutrient concentrations; relationships between catchment size and agricultural usage.

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