Initial results after implementation of 4D-CT show high accuracy of interpretation for inexperienced observers, comparable to published data, and high interobserver agreement.

Cardiac Magnetic Resonance Fingerprinting (cMRF) has been demonstrated to enable robust and accurate T1 and T2 mapping for the detection of myocardial fibrosis and edema. However, the relatively long acquisition window (250 ms) used in previous cMRF studies might leave it vulnerable to motion artifacts in patients with high heart rates. The goal of this study was therefore to compare cMRF with a short acquisition window (154 ms) and low-rank reconstruction to routine cardiac T1 and T2 mapping at 1.5 T. Phantom studies showed that the proposed cMRF had a high T1 and T2 accuracy over a wider range than routine mapping techniques. In 9 healthy volunteers, the proposed cMRF showed small but significant myocardial T1 and T2 differences compared to routine mapping (ΔT1 = 1.5%, P = 0.031 and ΔT2 = − 7.1%, P < 0.001). In 61 consecutive patients referred for CMR, the native T1 values were slightly lower (ΔT1 = 1.6%; P = 0.02), while T2 values did not show statistical difference (ΔT2 = 4.3%; P = 0.11). However, the difference was higher in post-contrast myocardial T1 values (ΔT1 = 12.3%; P < 0.001), which was reflected in the extracellular volume (ΔECV = 2.4%; P < 0.001). Across all subjects, the proposed cMRF had a lower precision when compared to routine techniques, although its higher spatial resolution enabled the visualization of smaller details.

Marchiafava‑Bignami disease is a rare condition associated with chronic alcohol consumption and/or malnutrition, characterized by demyelination of the corpus callosum, generally attributed to a deficiency in B complex vitamins. We report the case of a 34‑year‑old male with a 10‑year history of alcohol dependence who was admitted to the hospital, after having been found lying on the floor of his house, malnourished and with pressure ulcers on his chest and knees. On clinical observation he was found to be alert but mute. He followed some simple orders. Generalized spastic hypertonia was present. Magnetic resonance imaging showed demyelination of the corpus callosum, suggesting the diagnosis of Marchiafava‑Bignami disease. He was admitted to the Psychiatry Inpatient Unit and evaluated by a multidisciplinary team. He received thiamine, corticosteroids and rehabilitation. After a week, his speech was slurred but comprehensible and he could walk with aid; magnetic resonance imaging findings had improved. After three months in a Convalescence Unit, he was discharged with total autonomy.

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