medical imaging physics

磁共振成像对胶囊内镜的诱导力

Magnetic resonance imaging-induced forces on video capsule endoscopes

The study quantifies the displacement forces and torque exerted on commercially available video capsule endoscopes (VCEs) within a 3-Tesla (3-T) magnetic resonance imaging (MRI) environment. / 该研究量化了在3特斯拉（3-T）磁共振成像（MRI）环境中施加于市售胶囊内镜（VCE）上的位移力和扭矩。

Knowledge type: 物理设备
First proposed or discovered
Proposer: Turkey Farm member
Creator: 农场主
Last updated: 2026-11-10 20:05:48

Sub-knowledge points

Displacement force measurement per ASTM F2052-21Torque measurement via pulley method per ASTM F2213-17Thermal effect assessment via X-ray imaging of internal metallic components

Higher-order knowledge points

MRI contraindication for patients with ingested VCEManufacturer advisories regarding VCE and MRI schedulingSafety thresholds defined by capsule gravitational force

Main parameters and performance indicators

Magnetic field strength: 3-Tesla (3-T)Displacement force threshold: Exceeded for all but one VCETorque threshold: Exceeded for magnet-containing capsulesThermal effect indicator: Internal metallic component length (mean 21.3 mm)

Open problems

Long-term safety of asymptomatic retentionClinical harm in isolated inadvertent scanning casesStandardized safety protocols for VCE in MRI environments

Related literature

ranked by community stars

Magnetic resonance imaging-induced forces on video capsule endoscopes: First systematic in vitro assessmentOpen source

磁共振成像对胶囊内镜的诱导力

Sub-knowledge points

Higher-order knowledge points

Main parameters and performance indicators

Open problems

Related products and links