True North Imaging clinics are conveniently located across the GTA and Kitchener-Waterloo region, with corporate head office in Thornhill.
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The TNI Doctor Portal is extremely simple to use. The only training needed is a 3-minute phone conversation with our staff.
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At TNI, we're always adding new services and locations. Find out about the latest news, hours of operation and events.
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An ultrasound is a procedure in which high-energy sound waves are bounced off internal tissues or organs and make echoes. The echo patterns are shown on the screen of an ultrasound machine, forming a picture of body tissues called a sonogram.
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Low dose x-rays are used to assess and diagnose diseases by making pictures of the inside of the body. TNI accepts referrals from family doctors, specialists, urgent care physicians, sports medical doctors and chiropractors. We also provide x-ray services for immigration studies and other regulatory requirements.
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Mammography is a low-dose x-ray examination of the breasts, and is used to detect early cancer of the breasts in patients, who may experience no symptoms, and to detect and diagnose breast disease in women experiencing symptoms such as a lump, pain or nipple discharge.
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Sonohysterography is a clinically valuable procedure performed to examine the uterine cavity and lining. It is also the easiest way to examine the fallopian tubes. True North Imaging (TNI) has been performing sonohysterograms since 1994 when Dr. Alex Hartman first helped to pioneer the procedure in Ontario.
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Bone Mineral Density (BMD) is a test which detects low bone density. The most common bone density test is called dual energy x-ray absorptiometry (DXA). The test involves lying on a table for 10-20 minutes, while a small x-ray detector scans the spine, hips or both.
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Whether for investigation, monitoring or treatment, ultrasound is a cornerstone of fertility investigation. True North Imaging (TNI) is one of the world's largest providers of fertility ultrasound and research in this area. Specialists the world over consistently adhere to our ultrasound protocols and seek our advice.
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At TNI we are committed to providing our staff with a warm and collegial work environment.
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Our radiologists and technical staff at TNI have long been involved in leading edge research, primarily in the fields of OB/GYN and fertility imaging.
DISCOVER
X-Ray services will NOT be available at our Midtown Diagnostic Imaging (1849 Yonge Street) location on Friday June 19th and Monday June 22, 2026.
The X-Ray Machine is being serviced. X-Ray services will resume on Tuesday June 23rd, 2026.
Other Services are not affected.