High-Intensity Transient Signals Detected in a Renal Allograft

High-intensity transient signals (HITS) are signals recorded by the Doppler ultrasounds, reflecting either the passage of microemboli, both solid or gaseous in the vessels, or artifacts. Their identification during Duplex US highlights the need for further evaluation to rule out a potential embolic...

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Main Authors: Lea Kaadi, Christele Lahoud, Samir Hachem, Tarek Smayra, Kamal Hachem
Format: Article
Language:English
Published: Wiley 2023-01-01
Series:Case Reports in Transplantation
Online Access:http://dx.doi.org/10.1155/2023/9921063
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author Lea Kaadi
Christele Lahoud
Samir Hachem
Tarek Smayra
Kamal Hachem
author_facet Lea Kaadi
Christele Lahoud
Samir Hachem
Tarek Smayra
Kamal Hachem
author_sort Lea Kaadi
collection DOAJ
description High-intensity transient signals (HITS) are signals recorded by the Doppler ultrasounds, reflecting either the passage of microemboli, both solid or gaseous in the vessels, or artifacts. Their identification during Duplex US highlights the need for further evaluation to rule out a potential embolic source. A 49-year-old female was referred to our hospital for renal transplantation. The Doppler ultrasound done on day 4 after the surgery revealed the presence of high-intensity transient signals (HITS) suggesting the passage of an emboli. Renal magnetic resonance angiography (MRA) confirmed the presence of peripheral parenchymal defects suggestive of a distal embolus. A better understanding and recognition of this radiological sign are essential in order to initiate appropriate patient management when needed. In this report, we review the importance of HITS and present a case in which HITS were detected in an unusual location: an allograft kidney artery.
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series Case Reports in Transplantation
spelling doaj-art-31f0ff505c8e4c7b97fecec51652dbb12025-08-20T03:18:39ZengWileyCase Reports in Transplantation2090-69512023-01-01202310.1155/2023/9921063High-Intensity Transient Signals Detected in a Renal AllograftLea Kaadi0Christele Lahoud1Samir Hachem2Tarek Smayra3Kamal Hachem4Medical Imaging DepartmentMedical Imaging DepartmentFaculty of MedicineMedical Imaging DepartmentMedical Imaging DepartmentHigh-intensity transient signals (HITS) are signals recorded by the Doppler ultrasounds, reflecting either the passage of microemboli, both solid or gaseous in the vessels, or artifacts. Their identification during Duplex US highlights the need for further evaluation to rule out a potential embolic source. A 49-year-old female was referred to our hospital for renal transplantation. The Doppler ultrasound done on day 4 after the surgery revealed the presence of high-intensity transient signals (HITS) suggesting the passage of an emboli. Renal magnetic resonance angiography (MRA) confirmed the presence of peripheral parenchymal defects suggestive of a distal embolus. A better understanding and recognition of this radiological sign are essential in order to initiate appropriate patient management when needed. In this report, we review the importance of HITS and present a case in which HITS were detected in an unusual location: an allograft kidney artery.http://dx.doi.org/10.1155/2023/9921063
spellingShingle Lea Kaadi
Christele Lahoud
Samir Hachem
Tarek Smayra
Kamal Hachem
High-Intensity Transient Signals Detected in a Renal Allograft
Case Reports in Transplantation
title High-Intensity Transient Signals Detected in a Renal Allograft
title_full High-Intensity Transient Signals Detected in a Renal Allograft
title_fullStr High-Intensity Transient Signals Detected in a Renal Allograft
title_full_unstemmed High-Intensity Transient Signals Detected in a Renal Allograft
title_short High-Intensity Transient Signals Detected in a Renal Allograft
title_sort high intensity transient signals detected in a renal allograft
url http://dx.doi.org/10.1155/2023/9921063
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AT christelelahoud highintensitytransientsignalsdetectedinarenalallograft
AT samirhachem highintensitytransientsignalsdetectedinarenalallograft
AT tareksmayra highintensitytransientsignalsdetectedinarenalallograft
AT kamalhachem highintensitytransientsignalsdetectedinarenalallograft