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This is the radiologist’s version of photocopying your face at work.

These MRI scans show what an artichoke, a head of broccoli, and the human brain look like on the inside. Magnetic resonance imaging scanners, or MRIs for short, let us see internal anatomy at high resolution. When we put a set of MRI images in sequence, we get crazy pictures like these. Cool, huh?

Learn about MRI scanners and the future of brain imaging>> 

A three-year-old girl had a hemispherectomy to treat Rasmussen syndrome. This MRI scan was taken in 2002 after she had turned seven.
The right hemisphere of her brain, which was completely removed, contained the language center and motor control for the left side of her body, and today she has very minor issues controlling her left arm and leg. However, she is fully bilingual in Turkish and Dutch and leads an otherwise normal life. 

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An MRI cross-section of someone’s mouth and throat while singing “If I Only Had a Brain.” According to the description, this is a new MRI technique that scans at the rate of 100 frames per second rather than the typical rate of 10 frames per second, which gives you this really nice and detailed video. 

Things to look for: the lips closing for bilabial sounds, such as the /b/ in “brain”, the velum opening for nasal sounds (at the top of the throat, leading into the nasal cavity), such as the /n/ in “brain” (although it actually opens slightly before the /n/, because vowels nasalize before a nasal consonant in English). 

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40-year-old man with symptomatic atrial fibrillation. Selected images from pre-ablation pulmonary vein cardiac MRI.

Radiologic Findings Select cardiac MRI images. Cine GRE 4-chamber view (Fig. 1) and cine GRE small field-of-view targeted to the right and left atria and inferior vena cava (Fig. 2) demonstrate a thin, mobile membrane extending from the inferior vena cava into the right atrium. The interatrial septum is intact. Note the absence of spin dephasing about the interatrial septum. No valvular insufficiency is seen.

Diagnosis: Chiari Network

Differential Diagnosis

·         Prominent eustachian valve

·         Valvular disruption

·         Valvular vegetation

·         Atrial septal defect

·         Atrial septal aneurysm

·         Various cardiac masses

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