Blogs/News/PSAs

Titanium hemostatic clips are small, biocompatible devices used in minimally invasive surgeries to control bleeding by clamping blood vessels. Widely utilized in procedures like those performed by companies such as Kangji Medical, these clips are valued for their strength, lightweight nature, and corrosion resistance. Their use spans obstetrics, gynecology, general surgery, urology, and thoracic surgery. Given their prevalence, a common concern among patients and healthcare providers is whether titanium hemostatic clips pose risks during magnetic resonance imaging (MRI) scans. This article objectively examines the safety of titanium hemostatic clips in MRI environments, addressing material properties, clinical considerations, and safety protocols.
 

 

Titanium hemostatic clips are crafted from titanium or titanium alloys, materials chosen for their biocompatibility and durability. These clips are designed to securely occlude blood vessels or tissues during surgery, preventing excessive bleeding. Their small size—typically a few millimeters—allows precise application in minimally invasive procedures. The non-ferromagnetic nature of titanium is a critical factor in their compatibility with MRI scanners, which rely on powerful magnetic fields.
 

Titanium hemostatic clips are employed in various surgical fields. In general surgery, they are used to ligate vessels during procedures like cholecystectomy. In gynecology, they assist in controlling bleeding during hysterectomies. Their versatility extends to urology and thoracic surgery, where precise hemostasis is crucial. These clips remain in the body post-surgery, either permanently or until naturally absorbed, depending on the design.
 

MRI scanners generate strong magnetic fields, often ranging from 1.5 to 3 Tesla, to produce detailed images of the body. Metallic implants can pose risks, including movement, heating, or imaging artifacts, depending on their composition. Ferromagnetic materials, like certain steels, are particularly hazardous due to their attraction to magnetic fields. Titanium hemostatic clips, however, are made from non-ferromagnetic titanium, which minimizes these risks.
 

Titanium and its alloys are non-ferromagnetic, meaning they do not magnetize in the presence of an MRI’s magnetic field. This property significantly reduces the risk of movement or dislodgement of titanium hemostatic clips during a scan. Studies, such as those published in the Journal of Magnetic Resonance Imaging, confirm that titanium implants, including hemostatic clips, exhibit negligible magnetic susceptibility, making them generally safe for MRI procedures.
 

While titanium hemostatic clips are considered MRI-safe, they can cause minor imaging artifacts. These artifacts appear as small distortions in MRI images near the clip’s location due to the metal’s interaction with the magnetic field. However, these distortions are typically localized and do not significantly impair diagnostic accuracy. Radiologists can adjust imaging parameters to minimize these effects, ensuring clear visuals of critical areas.
 

Before an MRI, patients with titanium hemostatic clips must undergo thorough screening. Healthcare providers should verify the clip’s material through surgical records or imaging history, as some older hemostatic clips may contain ferromagnetic materials. Patients should inform radiologists about any surgical implants, including titanium hemostatic clips, to ensure proper safety measures are in place.
 

Titanium hemostatic clips are often certified with standards like ISO and CE, indicating compliance with safety and quality regulations. Manufacturers provide MRI compatibility information, typically labeling clips as “MRI-safe” or “MRI-conditional.” MRI-conditional devices may have specific guidelines, such as limits on magnetic field strength (e.g., 1.5T vs. 3T scanners). Always consult the clip’s documentation for precise instructions.
 

Radiologists and MRI technicians play a critical role in ensuring safety. They may use lower field strength scanners or specific imaging sequences to reduce artifacts caused by titanium hemostatic clips. In rare cases, if the clip’s location is near a critical anatomical structure, alternative imaging modalities like CT scans may be considered to avoid potential complications.
 

Patients with titanium hemostatic clips should proactively communicate their surgical history to their healthcare team. Providing details about the surgery, including the date, type of procedure, and implant materials, helps radiologists assess MRI safety. If uncertainty exists about the clip’s composition, additional tests, such as X-rays, may be conducted to confirm it is titanium.
 

The prospect of undergoing an MRI with a titanium hemostatic clip can cause anxiety. Healthcare providers should reassure patients by explaining titanium’s MRI-safe properties and the rigorous safety protocols in place. Clear communication about the low risk of complications can alleviate concerns and ensure a smooth scanning experience.
 

Recent advancements in titanium hemostatic clip design focus on improving biocompatibility and reducing imaging artifacts. Some manufacturers have developed clips with smoother edges or coatings to minimize tissue irritation and enhance MRI compatibility. These innovations ensure that titanium hemostatic clips remain a reliable choice for surgeons and patients alike.
 

Ongoing research continues to evaluate the long-term safety of titanium hemostatic clips in MRI environments. Studies, such as those in theევ Radiology, confirm that titanium implants remain safe across a range of magnetic field strengths, including newer high-field scanners (up to 7T in research settings). This research supports the widespread use of titanium hemostatic clips in modern surgical practice.
 

Titanium hemostatic clips are generally safe for MRI scans due to their non-ferromagnetic properties, making them a reliable choice for surgical hemostasis. While minor imaging artifacts may occur, these do not typically affect diagnostic quality. Proper screening, adherence to manufacturer guidelines, and radiologist expertise ensure patient safety during MRI procedures. By understanding the properties and protocols surrounding titanium hemostatic clips, patients and healthcare providers can approach MRI scans with confidence, ensuring both safety and effective diagnostics.