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Updated: Aug 19, 2026

Non-invasive Imaging of Acute Allograft Rejection after Rat Renal Transplantation Using 18F-FDG PET
Published on: April 28, 2013
[The imaging of organ transplants in children]
1Service de Radiopédiatrie de l'Hôpital des Enfants-Malades, Paris.
Insights
Ultrasonography is crucial for monitoring pediatric organ transplant recipients, detecting complications non-invasively. Pulsed Doppler ultrasound aids in diagnosing vascular issues, guiding treatment for transplant patients.
Area of Science:
- Medical Imaging
- Pediatric Transplantation
- Radiology
Background:
- Organ transplantation requires vigilant monitoring for complications.
- Clinical and biologic signs of complications in transplant patients are often non-specific.
- Immunosuppressed pediatric transplant recipients are particularly fragile.
Purpose of the Study:
- To highlight the indispensable role of imaging in organ transplantation.
- To emphasize ultrasonography as a primary monitoring tool in pediatric transplant patients.
- To discuss the diagnostic and therapeutic contributions of interventional radiology.
Main Methods:
- Bedside ultrasonography for immediate patient assessment.
- Pulsed Doppler ultrasonography for vascular lesion diagnosis.
- Advanced imaging techniques reserved for specific indications.
Main Results:
- Ultrasonography is irreplaceable for supervising fragile pediatric transplant patients.
- Pulsed Doppler ultrasound significantly aids in diagnosing hepatic and renal vascular lesions.
- Interventional radiology plays a key role in managing post-transplant complications.
Conclusions:
- Imaging is essential for identifying and managing complications in organ transplantation.
- Non-invasive ultrasonography is vital for the care of pediatric transplant recipients.
- Interventional radiology offers effective treatment options for transplant-related complications.
Abstract:
Imaging plays a major role in organ transplantation. It allows to show or to rule out numerous complications whose clinical and biologic picture is often little specific. Due to the fragility of these immunodepressed children, ultrasonography performed at the patient's bed side, is a irreplaceable supervision tool. Its association to pulsed Doppler was recently an important contribution to the diagnosis of hepatic and renal vascular lesions. The techniques of investigation which require the patient transport and anesthesia are performed only by second intention. The place of interventional radiology, especially in the treatment of hepatic and renal complications, should be emphasized.
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