Endovascular management of acute embolic occlusion of the superior mesenteric artery: a 12-year single-centre experience

…, O Renc, M Strýček, P Dvořák, P Hoffmann… - Cardiovascular and …, 2016 - Springer
Purpose Retrospective evaluation of 12-year experience with endovascular management of
acute mesenteric ischemia (AMI) due to embolic occlusion of the superior mesenteric artery (…

Focal nodular hyperplasia: spoke-wheel arterial pattern and other signs on dynamic contrast-enhanced ultrasonography

L Ungermann, P Eliáš, J Žižka, P Ryška… - European journal of …, 2007 - Elsevier
OBJECTIVE: To evaluate the prevalence of spoke-wheel pattern and typical symptoms of
focal nodular hyperplasia (FNH) by means of dynamic contrast-enhanced ultrasonography (…

Value of Doppler sonography in revealing transjugular intrahepatic portosystemic shunt malfunction: a 5-year experience in 216 patients

…, M Lojík, P Ryska, J Masková, P Hulek… - American Journal of …, 2000 - Am Roentgen Ray Soc
… The decline in these two parameters was more pronounced in the group of occluded shunts
(p < 0.001 for V max and p < 0.01 for flow volume) than in the group of stenosed shunts (p < …

The role of embolization in radical surgery of renal cell carcinoma spinal metastases

S Řehák, A Krajina, L Ungermann, P Ryška… - Acta …, 2008 - Springer
Background Radical surgery of renal cell carcinoma spinal metastases carries a high risk
due to potentially life-threatening extreme blood loss. Radical preoperative embolization of …

Nakagami-Fuzzy imaging framework for precise lesion segmentation in MRI

O Alpar, R Dolezal, P Ryska, O Krejcar - Pattern Recognition, 2022 - Elsevier
… is calculated by: T P R = T P / P , where P is the number of real positive pixels. The real
negative values (N) could be derived from all pixels, by N = w h − P . Calculation of TPR also …

Nakagami imaging and morphing for multiple sclerosis lesion volume estimation

O Alpar, O Soukup, P Ryska, R Dvorakova… - Expert Systems with …, 2024 - Elsevier
… The basic distribution has the following probability density function (pdf):(1) f ( r ; m , Ω ) = 2
m m r 2 m - 1 Γ m Ω m e x p - m Ω r 2 where r is a pixel on an image R and Γ m is the gamma …

Radiological markers of idiopathic normal pressure hydrocephalus: Relative comparison of their diagnostic performance

P Ryska, O Slezak, A Eklund, J Malm, J Salzer… - Journal of the …, 2020 - Elsevier
… All biomarkers studied were able to reliably differentiate iNPH subjects from HC (p < .001)
except for cella media-to-temporal horn ratio. Z-Evans index, vertical cella media and vertical …

Low-contrast lesion segmentation in advanced MRI experiments by time-domain Ricker-type wavelets and fuzzy 2-means

O Alpar, R Dolezal, P Ryska, O Krejcar - Applied Intelligence, 2022 - Springer
Automated suspicious region segmentation has become a crucial need for the experts
dealing with numerous images containing contrast-based lesions in MRI. Not all solutions, …

[HTML][HTML] Previous lumbar spine surgery decreases the therapeutic efficacy of dorsal root ganglion pulsed radiofrequency in patients with chronic lumbosacral radicular …

…, J Vanasek, E Cermakova, J Zizka, P Ryska - Journal of Personalized …, 2023 - mdpi.com
… in the non-PSS group only (p = 0.014 and 0.021). The … (p = 0.25), as well as at three months
after treatment (p = 0.085). The difference six months after treatment was more expressed (p

Prognostic impact of hemoglobin level prior to radiotherapy on survival in patients with glioblastoma

…, I Latr, S Nemecek, M Sercl, P Ryska… - Strahlentherapie …, 2003 - search.proquest.com
… of dexamethasone≤ 2 mg/day (p= 0.005) to be associated with … (p< 0.001), higher Hb level
(p= 0.002), lower dose of dexamethasone (p= 0.026), and a hemispheric tumor location (p= …