Philips CT8-4 40R Cardiac Ultrasound Transducer Probe

Philips CT8-4 40R Curved-Array Ultrasound Transducer Probe is a mid-frequency convex transducer designed for cardiac imaging and general abdominal scanning on older Philips/ATL systems. It operates across a 4–8 MHz bandwidth, delivering a balance of penetration and detail suitable for transthoracic echocardiography and evaluation of upper abdominal organs. The 40R variant belongs to the CT8-4 family and is commonly listed as compatible with Philips HDI 3000 and HDI 5000 ultrasound scanners, enabling clinicians to perform standard cardiac studies alongside abdominal assessments on legacy platforms. The curved array geometry yields a wider sector field of view than linear probes, helping visualize cardiac chambers, valves, and surrounding vasculature within mid-depth imaging ranges. Typical use scenarios include routine echocardiography where a mid-band transducer is preferred for patients with larger body habitus or deeper thoracic structures, as well as abdominal imaging where adequate penetration at moderate frequencies is advantageous. This transducer is a staple for facilities maintaining legacy ATL equipment, offering reliable image quality for everyday diagnostic workflows without requiring higher-frequency probes that may compromise penetration in larger patients.