If your practice uses a FibroScan® device, you already understand what it represents: the gold standard for non-invasive liver assessment, validated by more than 6,270 peer-reviewed publications, referenced in over 250 international clinical guidelines, and used in 100+ countries worldwide. It is the only point-of-care liver stiffness device referenced directly in FDA prescribing information, and it is the instrument hepatologists, gastroenterologists, and primary care providers trust to make consequential clinical decisions about fibrosis staging, cirrhosis risk, and treatment monitoring.
A machine of that clinical importance — and price point — deserves a cleaning protocol to match. And yet, in practices across the country, FibroScan probes are being wiped down with the wrong product every single day.
What the FibroScan® Actually Does
The FibroScan® (Echosens, Paris, France) uses Vibration Controlled Transient Elastography (VCTE™) to measure liver stiffness non-invasively. A specialized ultrasound transducer probe is positioned intercostally near the right lobe of the liver. A 50 Hz shear wave is transmitted through the skin and subcutaneous tissue into the liver parenchyma. The device measures the velocity of that shear wave — directly correlated to tissue stiffness — and returns a result in kilopascals (kPa). The median of 10 successful measurements constitutes the exam result.
In addition to liver stiffness measurement (LSM), the FibroScan® simultaneously captures the Controlled Attenuation Parameter (CAP™), a proprietary biomarker that quantifies hepatic steatosis. Together, LSM by VCTE™ and CAP™ give clinicians a non-invasive snapshot of both fibrosis and fat accumulation in the liver — in under four minutes, without a biopsy, without sedation, and without recovery time.
The current FibroScan® lineup includes four models for different clinical settings:
- FibroScan® Expert 630 — flagship model with spleen stiffness measurement (SSM) at 100 Hz, for advanced hepatology centers
- FibroScan® Compact 530 — full-featured portable unit for hospitals and specialist clinics
- FibroScan® Mini+ 430 — compact format for outpatient and community settings
- FibroScan® GO (230) — the newest, most portable model, designed specifically for primary care and point-of-care screening
Each model uses a delicate transducer probe — the clinical heart of the device — that must be cleaned and disinfected between every single patient examination. Getting that cleaning protocol right is not optional. Getting it wrong can be expensive.
The Probe Damage Problem No One Warns You About
Ultrasound transducer probes — including FibroScan® probes — are engineered with materials that are fundamentally incompatible with the harshest chemicals found in common hospital-grade disinfectants. The acoustic lens, the cable jacket, the housing polymer, and the hermetic seal of the transducer head are all vulnerable to chemical leaching from alcohol, bleach, hydrogen peroxide, and phenolic compounds.
The consequences of using the wrong disinfectant are well documented:
- Acoustic lens delamination — alcohol and harsh solvents dissolve the bonding agents between the lens and the crystal array, causing progressive probe failure and ultimately rendering the transducer unusable
- Cable and housing degradation — caustic formulas cause plasticizer leaching that leads to yellowing, brittleness, and cracking of the cable jacket over time
- Electrical safety failure — chemical damage to the hermetic seal of the transducer housing increases leakage current risk, creating a patient safety concern
- Asset value loss — probes with visible chemical stress cracking receive dramatically reduced trade-in values and face higher annual maintenance costs
A single delaminated FibroScan® transducer head can cost between $5,000 and $15,000 to replace. Most practices don't realize the damage is happening until it's too late — because it accumulates slowly, wipe by wipe, over months of daily use.
What Echosens Requires — and What They Prohibit
Echosens publishes clear, specific guidance on probe disinfection on their official website. Their protocol is precise: probes must be cleaned and disinfected between each examination, in a defined sequence — remove gel, clean with a dampened cloth or wipe using a recommended product, dry, then wipe with a disinfectant solution, then dry again, then inspect for damage.
To determine which disinfectant agents are compatible with FibroScan® probes, Echosens conducted physical compatibility testing — prolonged exposure trials evaluating whether products damaged probe materials. They then cross-referenced compatible agents against the U.S. Environmental Protection Agency's EPA List N (products meeting EPA criteria for use against SARS-CoV-2) and reviewed manufacturer efficacy claims.
The result is a published Disinfection Agents Compatibility Table identifying the active ingredient classes that passed Echosens' testing. Quaternary ammonium compounds (QACs) — the active ingredient class that includes benzalkonium chloride (BZK), N-Alkyl Dimethyl Benzyl Ammonium Chloride, and related compounds — are listed among the compatible classes.
Equally important is what Echosens explicitly prohibits on FibroScan® probes:
- Alcohol-based disinfectants
- Bleach / sodium hypochlorite
- Hydrogen peroxide
- Phenolic compounds
- Benzothonium chloride
- Benzoyl peroxide
Walk into any supply closet in any hospital in America and you'll find multiple products on that prohibited list being used on ultrasound equipment every day. Not out of negligence — out of uninformed habit.
Why SONO Ultrasound Wipes Are the Compatible Choice
SONO Ultrasound Wipes were engineered from the ground up for use on ultrasound probes and transducers. The formula is built around N-Alkyl Dimethyl Benzyl Ammonium Chloride — a quaternary ammonium compound — as the active disinfecting agent. That places SONO squarely within the active ingredient class Echosens has identified as compatible with FibroScan® probes through their physical compatibility testing.
Equally important is what SONO does not contain:
- No alcohol — the primary cause of lens delamination and cable yellowing
- No bleach — corrosive to probe housing polymers and cable materials
- No hydrogen peroxide — prohibited by Echosens for FibroScan® probes
- No ammonia, phosphates, or solvents — which accelerate plasticizer leaching
- No phenolic compounds — prohibited by Echosens for the ultrasound localization probe
In other words, SONO contains every active ingredient class Echosens allows — and none of the agents Echosens prohibits. That alignment is not a coincidence. It is the product of a formula purpose-built for the precise demands of ultrasound transducer care.
The FibroScan® community has recognized this. SONO is publicly marketed as "FibroScan Approved" — a designation reflected in product listings, distributor descriptions, and the OEM channel. SONO is distributed through the same major medical channels — Henry Schein, McKesson, Medline, Davis Medical — that serve FibroScan® accounts nationwide. And SONO Supplies has a direct supply relationship with Echosens: SONO Ultrasound Wipes are provided to Echosens, who includes a complimentary pack with every FibroScan® unit purchase — the clearest possible signal of OEM trust and product confidence.
As one verified clinical user put it on the SONO platform: "I decided to try your wipes based on the OEM's recommendation and have recommended them to all seven hospitals that I work with."
The EPA Registration That Closes the Loop
Echosens used EPA List N compliance as one of the selection criteria for compatible disinfectant agents. SONO Ultrasound Wipes carry EPA Registration #6836-340-89018 and are confirmed on EPA List N — meeting EPA criteria for use against SARS-CoV-2 and eligible for emerging pathogen claims under the EPA Emerging Pathogen Policy.
Beyond SARS-CoV-2, SONO is EPA-registered to kill 47 pathogens, including MRSA, HIV, Staph aureus, E. coli O157:H7, Salmonella, Pseudomonas, Influenza A, Norovirus, and Listeria. Testing has been conducted in accordance with EPA performance standards for bacteria, viruses, fungi, and animal viruses. SONO also meets OSHA's Bloodborne Pathogen Standard 1910.1030 — a compliance requirement for any clinical setting performing patient-contact procedures.
The formula is alcohol-free, bleach-free, phosphate-free, ammonia-free, and solvent-free. It requires no gloves for routine use and is safe on LCD and touch screens — making it practical for full FibroScan® system cleaning including the keyboard, screen, handles, and probe holders, not only the transducer itself.
Matching the Standard the Machine Demands
The FibroScan® is a $30,000–$130,000+ clinical investment depending on model and market. The probes it uses are precision instruments. The patients it serves deserve equipment that is both clean and intact.
Echosens has done the work of identifying which active ingredient classes are safe on their probes. SONO has done the work of building a formula around those exact ingredients, tested on ultrasound equipment, validated against 47 pathogens, EPA-registered, OSHA-compliant, and trusted by the OEM community that sells and services FibroScan® devices every day.
Using the right wipe on a FibroScan® probe is not a minor administrative detail. It is a clinical equipment decision with real consequences for probe longevity, patient safety, infection control compliance, and the financial health of your practice. Choose accordingly.
🧫 The FibroScan®-compatible wipe, trusted by the OEM:
SONO Ultrasound Wipes — Quaternary Ammonium Formula · EPA Reg. #6836-340-89018 · EPA List N · 47 Pathogen Kill Claims · Alcohol-Free · Bleach-Free · Solvent-Free · OSHA 1910.1030 Compliant · Made in USA
Sources: Echosens — Probe and Device Disinfection (echosens.com/probe-and-machine-disinfection, updated April 2026); Echosens — FibroScan® Clinical Evidence (echosens.com/en-us/clinical-evidences); Echosens — COVID-19 FAQs; PMC — Non-Invasive Measurement of Hepatic Fibrosis by Transient Elastography (PMC10459581); PMC — Transient Elastography and FibroScan (PMC12781356); EPA Registration #6836-340-89018; OSHA Standard 1910.1030.
