Learning Centre

Ultrasound probe lens scratches and membrane wear are the failures you can actually see. A scuffed, discolored, or grooved acoustic lens on the probe face turns up in almost every busy imaging department eventually, whether the probe is a GE C1-5 workhorse or a Philips X5-1 that costs as much as a car. Biomedical engineers usually spot it during routine inspection or after a sonographer complains about image dropout in one region of the sector. This page settles three things: what lens wear actually does to your image, what causes it (one cause is entirely preventable, and it’s sitting in

A probe that still “works” but images badly is the hardest fault to pin down. Nothing is cracked, nothing is leaking, yet sonographers keep flagging a fuzzy image, poor penetration, or a faint double image on one transducer. Most ultrasound probe image quality problems land on a biomedical engineer’s desk exactly like this: a vague complaint, no visible damage, and a radiology lead asking whether the probe needs to be sent out. This page settles how to tell probe-side degradation from console-side settings, which failure mechanisms are behind each symptom, and which of them are worth repairing. What it looks

A bubble under the acoustic lens rarely announces itself. A sonographer mentions the gel “feels different” on one probe, or you spot a soft blister on the face during a routine wipe-down. That’s ultrasound probe lens delamination: the bonded lens layer separating from the array beneath it. This page covers what the lifting looks like, why it starts, how to confirm it yourself, and when a lens replacement makes sense versus retiring the transducer. One thing up front: this fault is as much an infection-control problem as an imaging one, and the gap between catching it early and catching it

A dark band running down the image that won’t go away, no matter how you adjust gain or TGC. That’s the classic sign of ultrasound probe element dropout, and if you manage an imaging department, you’ll meet it eventually on almost every transducer type. This page covers what dead elements actually look like on screen, how to separate true crystal dropout from a broken cable conductor before you ship anything, and when array rework is worth doing versus when it isn’t. What element dropout looks like Element-level work is done under magnification — this is where dead elements are traced.