The AM4115-N2UT maximum magnification of 220x is the recommended choice for its versatility and ease of use.
Capillaroscopy is a non-invasive, easy and safe diagnostic technique designed to evaluate small vessels of the microcirculation in the nail fold. It can reveal both the general architecture of capillary rows and fine details of particular vessels.
Selecting the right scope
Handheld digital videocapillaroscopes such as the Dino-Lite AM4115-N2UT (10x – 220x), AF4515-N4UT (430x – 470x), and AM4113-N5UT (500x), capillaroscopy provide precise qualitative and quantitative evaluation of the microcirculation and is a valuable tool in a rheumatologists’ daily practice.
The AM4115-N2UT with a maximum magnification of 220x is the recommended choice for its versatility and ease of use. It can be used in any situation, from bedside examinations to patients with severe flexion contractures. The new WF4115-N2UT(W) version offers Wi-Fi wireless connection for added portability.
Keep in mind the use case for a scope is usually for quick simple examinations, therefore we highly recommend the use of the AM4115N2UT (10x – 220x) as opposed to the higher magnification microscopes unless the high magnification is absolutely necessary. High magnification use is a lot more involved, requiring absolute stability, and more user patience as the focal plane is much thinner, however, with longer user experience, the high magnification use is possible.
A drop of paraffin oil, glycerine, or baby oil can be applied to the nail fold before examination in order to enhance transparency and provide the best results. During routine examinations, each finger (excluding the thumbs) are examined using the common magnification range between 50x-220x. This range shows the general shape of the terminal capillary row and also the details of a single capillary can be assessed. The Dino-Lite allows the captured images to be stored through the included software and used for comparison if the patient requires subsequent examinations.
The most important indications for performing capillaroscopy include differential diagnosis of primary and secondary Raynaud’s phenomenon, as well as the assessment of scleroderma spectrum disorders. In systemic sclerosis, capillary abnormalities appear and evolve in a clearly defined sequence called the scleroderma pattern, which correlates with internal organ involvement.