Bálint Botz

Jul 3, 2024 | radiopaedia.org | Bálint Botz |Arlene Campos

Multisystem inflammatory syndrome in children (MIS-C) or pediatric inflammatory multisystem syndrome (PIMS) is an emerging pediatric disease occurring after prior SARS-CoV-2 infection and is therefore strongly associated with the ongoing COVID-19 pandemic. The World Health Organization and the US Centers for Disease Control and Prevention both use the name multisystem inflammatory system in children (MIS-C) for this condition, and thus so will this article, but terminology varies.

Jun 28, 2024 | radiopaedia.org | Bálint Botz |Arlene Campos

Popliteal venous aneurysms are rare than those of the popliteal artery and are mostly asymptomatic. However, due to the disturbance of the venous blood flow, they can lead to potentially life-threatening consequences, such as deep vein thrombosis (DVT) and pulmonary embolism (PE). Popliteal venous aneurysms are uncommon, during duplex ultrasound scans an incidence of 0.1-0.2% was observed, with a slight left-sided and female predominance 1.

Jun 25, 2024 | radiopaedia.org | Bálint Botz |Arlene Campos

Photoacoustic or optoacoustic imaging (PAI) is an emerging imaging modality that utilizes a hybrid approach by using optical illumination of endogenous materials or administered fluorescent tracers, and consequent detection of the ultrasound waves released due to thermoelastic expansion. During photoacoustic imaging, a typically nanosecond, narrow bandpass laser or LED illumination is used to excite biological tissues.

Jun 21, 2024 | radiopaedia.org | Bálint Botz |Bruno Di Muzio

Perinephric myxoid pseudotumor of fat is a very rare, benign, and slowly growing tumor, which can mimic renal cysts, retroperitoneal cystic tumors and liposarcomas alike. Due to its rarity and overlapping imaging appearance the diagnosis is almost always made by histopathological analysis. Perinephric myxoid pseudotumor of fat is thought to be caused by irritation of the perinephric fat by pre-existing chronic kidney disease.

Jun 7, 2024 | radiopaedia.org | Bálint Botz |Lachlan McKay

Aliasing is a phenomenon inherent to Doppler modalities which utilize intermittent sampling in which an insufficient sampling rate results in an inability to record direction and velocity accurately. PhysicsUnlike continuous wave Doppler, pulsed wave and color flow Doppler modalities alternate between rapid emission of ultrasound waves (at a rate termed the pulse repetition frequency) and reception of incident ultrasound waves.