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Related Concept Videos

Computed Tomography01:10

Computed Tomography

Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...

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Related Experiment Video

Updated: May 31, 2026

C-arm-Free Simultaneous OLIF51 and Percutaneous Pedicle Screw Fixation in a Single Lateral Position
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Percutaneous foot joint needle placement using a C-arm flat-panel detector CT.

Martin Wiewiorski1, Martin Thanh Long Takes, Victor Valderrabano

  • 1Orthopaedic Department, University Hospital of Basel, Spitalstrasse 21, 4031, Basel, Switzerland. mwiewiorski@uhbs.ch

International Journal of Computer Assisted Radiology and Surgery
|June 21, 2011
PubMed
Summary

Flat-detector computed tomography (FD-CT) provides effective needle guidance for diagnostic foot injections. This imaging technique successfully guided contrast media placement in all patients, leading to significant symptom relief.

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Area of Science:

  • Orthopaedic imaging
  • Interventional radiology

Background:

  • Image guidance is crucial for accurate diagnostic injections in foot orthopaedics.
  • Traditional methods may have limitations in visualizing complex foot joint anatomy.

Purpose of the Study:

  • To evaluate the feasibility and efficacy of flat-detector computed tomography (FD-CT) for guiding diagnostic injections in foot joints.
  • To assess FD-CT's potential as an alternative to conventional 2D fluoroscopic guidance.

Main Methods:

  • FD-CT-guided joint infiltration was performed in 6 patients using a C-arm system with specialized software.
  • Interventions focused on diagnostic injections in midfoot and hindfoot joints.
  • Successful infiltration was confirmed by contrast media localization; pain scores were assessed pre- and post-procedure.

Main Results:

  • All 6 injections were technically successful, with contrast media accurately placed in the targeted joints.
  • All participants reported significant relief of symptoms following the procedure.
  • FD-CT demonstrated precise needle guidance for diagnostic foot injections.

Conclusions:

  • FD-CT-guided joint infiltration is a feasible and effective method for diagnostic injections in midfoot and hindfoot joints.
  • This advanced imaging technique offers a viable alternative to standard 2D fluoroscopic guidance.
  • FD-CT enhances accuracy and patient outcomes in foot and ankle interventions.