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The key difference between Superficial Vein Thrombosis (SVT) and Deep Vein Thrombosis (DVT) lies in their location and severity.Clinical ManifestationsSVT typically presents with localized pain, tenderness, and redness along the course of a superficial vein, often accompanied by a palpable, cord-like structure under the skin. This condition is usually less dangerous than DVT but can be uncomfortable and may lead to complications such as cellulitis or, rarely, a clot extension into the deep...
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Right Heart Catheterization: An OverviewRight heart catheterization is an invasive diagnostic procedure that measures right-sided cardiac and pulmonary artery pressures, calculates cardiac output, and identifies intracardiac shunts. It provides detailed hemodynamic data essential for diagnosing and managing various cardiovascular conditions, such as pulmonary hypertension.Access SitesCommon access sites for right heart catheterization include the internal jugular vein in the neck region, the...
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Left heart catheterization is an invasive diagnostic procedure used to evaluate the function and structure of the left side of the heart. It is generally performed to diagnose and treat cardiovascular conditions such as valve abnormalities, coronary artery disease, and congenital heart defects.Diagnostic and therapeutic purposesLeft heart catheterization serves various diagnostic and therapeutic purposes, including:Assessing coronary artery bypass grafts.Evaluating coronary artery disease in...
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Related Experiment Video

Updated: Sep 26, 2025

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Diagnostic challenges with central venous catheter studies.

Kumar K Shashi1, Michael J Callahan2, Andy Tsai2

  • 1Department of Radiology, Boston Children's Hospital, 300 Longwood Ave., Boston, MA, 02115, USA. drkumargowda@gmail.com.

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|April 23, 2022
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Summary

Central venous catheters (CVCs) are vital for medication delivery but prone to complications. This review details challenges in performing and interpreting fluoroscopic contrast studies for CVC functionality, aiming to improve diagnostic accuracy.

Keywords:
Central venous catheterChildrenComplicationsFluoroscopyRadiographyYoung adults

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Area of Science:

  • Radiology
  • Pediatric Imaging
  • Vascular Access

Background:

  • Central venous catheters (CVCs) are essential for prolonged venous access, enabling administration of medications, fluids, and nutrition.
  • CVCs are associated with numerous complications, including mechanical issues, malposition, infection, and thrombosis.
  • Contrast-enhanced line studies are crucial for evaluating CVC functionality after clinical and radiographic assessment.

Purpose of the Study:

  • To address the lack of standardization in performing fluoroscopically guided contrast injection studies for CVCs.
  • To highlight challenges in interpreting these studies, particularly for pediatric radiologists.
  • To improve the performance and interpretation of CVC contrast studies through case illustrations.

Main Methods:

  • A pictorial review approach was employed.
  • Case studies were drawn from a large tertiary children's hospital database.
  • Focus on fluoroscopically guided contrast injection studies for CVC assessment.

Main Results:

  • Identified and illustrated common challenges in performing CVC contrast studies.
  • Highlighted difficulties in interpreting these studies, especially for non-specialist radiologists.
  • Emphasized the need for improved understanding of causative mechanisms for CVC-related issues.

Conclusions:

  • Standardization and improved understanding of CVC contrast studies are needed.
  • Addressing performance and interpretation challenges can enhance diagnostic accuracy.
  • This review aims to improve the clinical utility of fluoroscopic evaluations for central venous catheters.