From what I've read and been told, the answer is firmly 'no'.
The original IMAX was a film based medium that was incredibly expensive and very cumbersome. The film reels were huge and required 2, sometimes 3 for a Hollywood film.
Source: Wikipedia The IMAX format is generically called "15/70" film, the name referring to the 15 sprocket holes or perforations per frame. The film's bulk requires horizontal platters, rather than conventional film reels. IMAX platters range from 1.2 to 1.83 meters (3.9 to 6.0 ft) diameter to accommodate 1 to 2.75 hours of film. Platters with a 2.5 hour feature film weigh 250 kilograms (550 lb).
Then there's the Digital version, sometimes referred to as 'Liemax'
Again Wikipedia
Digital IMAX
Because 70mm film and projectors are costly and difficult to mass produce, IMAX debuted a digital projection system in 2008. It uses two projectors that can present either 2D or 3D content in DCI or IMAX Digital Format (IDF) (which in itself is a superset of DCI). As of 2012, IDF uses 2K-resolution Christie projectors with Texas Instruments' Digital Light Processing (DLP) technology alongside parts of IMAX's proprietary formats. The two 2K images are projected over each other to make the image brighter.
The digital installations have caused some controversy, as many theaters have branded their screens as IMAX after merely retrofitting standard auditoriums with IMAX digital projectors. The screen sizes in these auditoriums are much smaller than those in the purpose-built auditoriums of the original 15/70 IMAX format. These theaters charge the same premium pricing as the purpose-built IMAX theaters, resulting in consumer confusion.
Another disadvantage is the much lower resolution of digital IMAX compared to traditional IMAX film, which is estimated to be up to 12,000 × 8,700 pixels with at least 6,120 × 4,500 minimum discernible pixels (27 megapixels).[20] Some reviewers also note that many non-IMAX theaters are already projecting films at 4K resolution, while digital IMAX has deployed both 2K and 4K products.
it's the lower resolution and smaller screen size that make it, to some anyway, not true IMAX.
The Glasgow Science Centre has an IMAX sscreen which was the only Genuine IMAX screen Scotland I think but was taken over by Cineworld and they originally said they would keep the 'proper' IMAX projector but apparently this has been removed and replaced with a digital system. There's also a new Laser projection IMAX system apparently coming in 2015. More info on that
here