Rendering stone fragments paramagnetic with iron-oxide microparticles to improve the efficiency of endoscopic stone fragment retrieval

Research output: Contribution to journalReview article

2 Scopus citations


Purpose of Review: Flexible ureteroscopes have allowed us to treat renal stones endoscopically through natural orifices. Unfortunately, there continues to be the problem of remnant stone fragments that continue to pose a health problem to patients with the risk of recurrent symptoms, obstruction and infection. Recent Findings: This article describes the research around a novel method of stone fragment extraction using microparticles and magnets. We explore the studies related to the efficiency of stone extraction and preliminary safety data. Summary: This novel technique has the potential to improve the efficiency of stone fragment retrieval during retrograde intrarenal stone surgery, potentially improving stone-free rates of the surgery. Further research needs to be carried out before it is ready for human use.

Original languageEnglish (US)
Pages (from-to)144-147
Number of pages4
JournalCurrent opinion in urology
Issue number2
StatePublished - Mar 1 2012



  • Magnetics
  • microparticles
  • renal calculi
  • ureteroscopy

ASJC Scopus subject areas

  • Urology

Cite this