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Related Concept Videos

Chronic Kidney Disease III: Interprofessional Care01:28

Chronic Kidney Disease III: Interprofessional Care

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Chronic kidney disease (CKD) requires collaborative and comprehensive management. CKD progresses through stages and can lead to end-stage kidney disease (ESKD) if untreated. Interprofessional collaboration and patient education are crucial, enabling patients to manage their health and improve their quality of life.Diagnostic approach for chronic kidney diseaseThe diagnosis of CKD primarily focuses on the glomerular filtration rate (GFR), which assesses kidney function by measuring how well...
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Imaging Studies II: Ultrasonography01:24

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IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...
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Chronic Kidney Disease I: Introduction01:25

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Chronic Kidney Disease (CKD) arises when the kidneys progressively lose their ability to function, ultimately leading to end-stage renal disease. At this advanced stage, the kidneys can no longer filter waste or maintain essential body functions, requiring renal replacement therapy (RRT) through dialysis or a kidney transplant for survival.Early-stage chronic kidney disease and detection challengesIn CKD's early stages, symptoms often remain absent because healthy nephrons compensate for...
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Imaging Studies VII: Vascular Imaging01:19

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DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...
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Acute Kidney Injury IV: Diagnostic Studies and Prevention01:30

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Accurate diagnosis and effective prevention are critical in managing Acute Kidney Injury (AKI), which is linked to high mortality rates ranging from 10% to 80%. Timely recognition of at-risk patients and careful monitoring can significantly reduce the likelihood of kidney damage.Diagnostic Assessments:The diagnostic process starts with a comprehensive medical history to identify prerenal, intrarenal, and postrenal causes.Prerenal causes, such as dehydration, hypotension, or blood loss, should...
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Imaging Studies I: Kidney, Ureter, and Bladder Studies01:28

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Kidney, Ureter, and Bladder (KUB) StudiesKidney, Ureter, and Bladder (KUB) studies are standard diagnostic imaging procedures used to assess the anatomy of the urinary system. They are commonly utilized for patients experiencing abdominal pain or urinary symptoms. By using a simple X-ray of the abdomen, KUB studies can reveal structural and pathological abnormalities within the kidneys, ureters, and bladder. These studies are particularly valuable in diagnosing kidney stones, urinary...
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Related Experiment Video

Updated: Mar 21, 2026

Author Spotlight: Developing a Bedside Protocol for Kidney and Genitourinary Ultrasonography
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Imaging in Chronic Kidney Disease.

Mario Meola, Sara Samoni, Ilaria Petrucci

    Contributions to Nephrology
    |May 13, 2016
    PubMed
    Summary

    Ultrasound (US) aids in diagnosing chronic kidney disease (CKD) by assessing kidney structure and blood flow. While not always definitive, US is valuable for monitoring CKD progression and screening at-risk patients.

    Area of Science:

    • Nephrology
    • Radiology
    • Medical Imaging

    Background:

    • Chronic kidney disease (CKD) diagnosis relies on glomerular filtration rate (GFR), urinalysis, and renal imaging.
    • Ultrasound (US) is crucial for evaluating kidney morphology and vascularization, aiding CKD diagnosis and progression monitoring.
    • Conventional US measures renal dimensions and echogenicity, while Doppler US assesses perfusion and detects stenosis.

    Purpose of the Study:

    • To highlight the role of ultrasound (US) in diagnosing and staging chronic kidney disease (CKD).
    • To emphasize the utility of B-mode, color-Doppler, and contrast-enhanced US in evaluating renal morphology and vascularization.
    • To discuss the significance of renal length, cortical thickness, and resistive indices (RIs) in assessing renal function and CKD progression.

    Main Methods:

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    • Conventional B-mode ultrasound for measuring renal longitudinal diameter and cortical thickness.
    • Color-Doppler and spectral Doppler ultrasound to assess renal perfusion, vascular patency, and intrarenal microcirculation.
    • Evaluation of renal echogenicity, urinary tract status, and resistive indices (RIs) for correlation with renal function.

    Main Results:

    • Maximum renal length and cortical thickness correlate significantly with renal function.
    • Renal resistive indices (RIs) correlate with renal function and may be independent risk factors for CKD progression.
    • Conventional and Doppler US contribute to definitive CKD diagnosis in less than 50% of cases due to a lack of specific patterns, especially in advanced stages.

    Conclusions:

    • Ultrasound (US) is a valuable tool for monitoring CKD progression and screening at-risk individuals.
    • While not always providing a definitive diagnosis, US offers essential morphological and vascular information.
    • The application and frequency of Doppler US should be individualized for optimal CKD management and follow-up.