MR Angiography (Cerebral Arteries & Veins)

MR angiography at MR Centrum Titanium images the arteries and veins of the brain without contrast agent and without ionising radiation, using flow-sensitive MRI sequences. It is used to look for aneurysms, vascular narrowing, malformations and venous sinus problems, and to follow up known vascular findings. The scan takes 15–40 minutes in a modern scanner with hearing protection and continuous staff contact, and is reported by radiologists subspecialised in neuroradiology and angiography, including MUDr. Tomáš Rohan, Ph.D. Because no contrast injection is needed, the examination is entirely non-invasive and suitable for patients who prefer to avoid contrast agents.

MR angiography (MRA) uses the movement of blood itself as the imaging signal: time-of-flight and phase-contrast MRI sequences depict flowing blood brightly against stationary tissue, producing detailed three-dimensional maps of the cerebral arteries and veins with no catheter, no X-rays and — at MR Centrum Titanium — no contrast injection. **Why it is requested:** MRA of the head is commonly indicated to screen for intracranial aneurysms (including in patients with a family history), to assess arterial narrowing or occlusion after transient neurological symptoms, to characterise vascular malformations, to evaluate pulsatile tinnitus, and to examine the venous sinuses where thrombosis is suspected. It is frequently combined with a standard brain MRI in one visit when both the brain tissue and its vessels need assessment — mention this when booking so adequate time is reserved. **The centre:** MR Centrum Titanium is a newly opened private MRI-dedicated centre in Brno's Titanium complex. Vascular studies are read by a senior team including MUDr. Tomáš Rohan, Ph.D., whose subspecialties include angiography and neuroradiology, under the professional guarantee of doc. MUDr. Andrea Šprláková-Puková, Ph.D. **The examination:** The process matches a standard MRI: arrive 15 minutes early, complete the consent and safety questionnaire (Czech or English), remove all metallic items, and lie still on the scanner table for 15–40 minutes with hearing protection. You hold a signalling balloon and remain under the technician's visual supervision throughout. Because the cerebral MRA protocol at this centre is performed without contrast, there is no injection, no cannula and no contrast-related risk — useful for patients with kidney impairment or previous contrast reactions (always disclose these anyway). **Limitations and preparation:** Image quality depends on remaining completely still; motion is the most common cause of non-diagnostic studies. Standard MRI exclusions apply — non-MR-compatible implants, recent implantation under 6 weeks, or metal fragments near the eyes. No dietary restrictions apply unless advised. Arrive without make-up or hair products, which can contain metallic particles. **Results:** The vascular study is reconstructed in 3D and reported by the neuroradiology/angiography team, with the report available to you or your referring physician after the examination.