LUTECH LT-300 HD FOR COLPOSCOPY
Background. In March 1924, the colposcope was introduced to evaluate the portio of the cervix by Hans Hinselmann in Germany after years of work with the famous lens manufacturer Leitz.1 Although its adoption as a standard tool for evaluating lower genital tract neoplasia was protracted, today it sits as a cornerstone technology in gynecology, and every ObGyn provider has been trained to perform colposcopic exams that include visualizing the cervix, vagina, and vulva as well as taking biopsies. In December 2000, after 75 years of glass lens technology, Welch-Allyn (Skaneateles Falls, New York) introduced the first video colposcope, shepherding the field into the 21st century with only limited traction. Now, Lutech is entering the fray hoping to further nudge traditionalists into the digital age.
Design/Functionality. The Lutech LT-300 HD works off of a Sony Exmor CMOS (complementary metaloxide semiconductor) camera with 2.13 megapixels to provide high-definition optical magnification of 1-30X illuminated by a circular cool LED array that offers 3000 lx of white light with an adjustable green filter to allow for contrast at working distances between 5.1 and 15.7 inches. The colposcope comes with either a vertical stand or a swing arm stand and has both HDMI and USB 3.0 video output so that the system can be attached to either a stand-alone monitor or a computer (not included). The colposcope also comes in a standard definition configuration (LT-300 SD), but I did not trial that model because the price difference did not seem to justify the potentially lower resolution.
In my experience with its use, the Lutech LT-300 HD was pretty excellent. Being a man and a doctor, I refused the online training session that comes free with the colposcope, assuming I could figure it out on my own. My assumption was mostly true, but there were definitely some tips and tricks that would have made my life easier had I not been so stiff-necked. That said, the biggest adjustment is getting used to looking at a screen and not having to look through eyepieces. The picture output is great and, as a patient (or student) teaching tool, it is phenomenal. Also, because it is digital, the image capture features allow for image importation into notes (although it is clunky and requires work arounds when using Epic).
Innovation. From an innovation point of view, I am not sure that Lutech re-invented fire since, in essence, the LT-300 HD is a modified CMOS video camera. But the company did do a nice job bringing together a lot of existing technologies into a highly functional product. I would love to see better integration with some of the larger electronic medical records (EMRs), but I suspect the barriers lie with the EMR companies rather than with Lutech, so I am giving them a pass on that front.
Summary. At its core, a colposcope is simply a tool with which to obtain a magnified view of the cervix, vagina, and/or vulva. Prior to advent and proliferation of CMOS camera technology, the most readily available means of accomplishing this was to employ glass lenses. But that was then, and this is now; CMOS technology is just better, cheaper, and more versatile. I no longer turn my head to look over my shoulder while backing up my car—I use the back-up camera. My Kodak instamatic has given way to my iPhone. And now, my incredibly heavy, unwieldy Leisegang colposcope has been replaced by a light-weight camera on a stand that I can easily move from room to room. I won’t lie, though,…it still seems weird to not look through eyepieces and work the focus knobs, but I am happy with the change. My patients can now see what I am looking at and better understand their diagnosis (if they want), and my notes are prettier. Onward march of progress.
Reference
1. Fusco E, Padula F, Mancini E, et al. History of colposcopy: a brief biography of Hinselmann. J Prenat Med. 2008;2:19-23.
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