Poster: "ECR 2016 / C-0520 / Differentiation of hemangioblastomas from pilocytic astrocytoma... more Poster: "ECR 2016 / C-0520 / Differentiation of hemangioblastomas from pilocytic astrocytomas using perfusion-weighted MR imaging." by: "M. Neska-Matuszewska1, A. Zimny2, J. Bladowska1, M. Sąsiadek1; 1Wroclaw/PL, 2Kamieniec Wroclawski/PL"
Poster: "ECR 2018 / C-1327 / Types of diagnostic catheters used in carotid and vertebral ang... more Poster: "ECR 2018 / C-1327 / Types of diagnostic catheters used in carotid and vertebral angiographies - single centre experience." by: "K. Switon, M. Guzinski, J. Garcarek, M. Sąsiadek; Wroclaw/PL"
Poster: "ECR 2016 / C-1186 / Dual energy CT in loosening of revision hip prosthesis: a compa... more Poster: "ECR 2016 / C-1186 / Dual energy CT in loosening of revision hip prosthesis: a comparison between MARS and non-MARS images." by: "M. Guzinski, L. Waszczuk, K. J. Kubicki, A. Kochman, M. Morawska-Kochman, M. Sąsiadek; Wroclaw/PL"
Poster: "ECR 2013 / C-2452 / Usefulness of diffusion tensor MR imaging for the assessment of... more Poster: "ECR 2013 / C-2452 / Usefulness of diffusion tensor MR imaging for the assessment of intramedullary changes of the cervical spinal cord in different stages of degenerative cervical spine stenosis" by: "A. Banaszek, J. Bladowska, P. Szewczyk, A. Zimny, P. Podgorski, M. Sąsiadek; Wroclaw/PL"
Dolichoectasia of the circle of Willis arteries and fusiform aneurysm of basilar artery – case re... more Dolichoectasia of the circle of Willis arteries and fusiform aneurysm of basilar artery – case report and
Analysis of anatomical variations of the main arteries branching from the abdominal aorta, with 6... more Analysis of anatomical variations of the main arteries branching from the abdominal aorta, with 64-detector
Personal experiences in direct ultrasound-guided injection of thrombin into the lumen of pseudoan... more Personal experiences in direct ultrasound-guided injection of thrombin into the lumen of pseudoaneurysm as a method of treatment in case of iatrogenic femoral
females at baseline. Subjects underwent MRI sessions at both 3T and 7T, completed a neuropsycholo... more females at baseline. Subjects underwent MRI sessions at both 3T and 7T, completed a neuropsychological test battery and performed a VO2max test both at baseline and post-intervention. Hippocampal volume was calculated from segmentations obtained from Freesurfer and CBV was calculated according to the Bookend method [4]. To this end, hippocampal T1 values were determined from T1 tissue maps and T1 blood values were measured in the sagittal sinus. Here we report on the baseline data from the NEUROSHAPE trial. Pearson correlation coefficients are used to study the association between hippocampal volume, CBV and VO2max. Post-intervention data are being processed. Results: We found a correlation between baseline VO2max and both left and right hippocampal volume (left: r = 0.428; p = 0.003; right r = 0.425; p = 0.003). However, preliminary analyses in a subsample of participants (N = 37) did not show an association between baseline VO2max and hippocampal CBV (left: r = 0.29 p = 0.09; right: r = 0.05 p = 0.76). Moreover, no correlation was found between hippocampal volume and CBV (left: r = 0.14 p = 0.40; right: r = 0.28 p = 0.09). Conclusions: In accordance with previous findings in elderly people, we confirm an association between hippocampal volume and cardiovascular fitness also in young healthy adults. However, in contrast to previous findings, we did not find an association between cardiovascular fitness and hippocampal CBV. This could be due to the fact that we have so far only analyzed the whole hippocampus, even though previous studies have mainly observed angiogenesis specifically in the dentate gyrus. Ongoing analyses, which will be presented, focus on hippocampal subfields and the effect of the exercise intervention.
Authors present the case of recurrent bronchial carcinoid in the right main bronchus, in patient ... more Authors present the case of recurrent bronchial carcinoid in the right main bronchus, in patient who had previously right upper lobectomy due to the tumor of the same pathomorphological type. The recurrence was accompanied by pulmonary emphysema of the right lower lobe.
Introduction In conventional MR examinations glioblastomas multiforme (GBMs), metastases and prim... more Introduction In conventional MR examinations glioblastomas multiforme (GBMs), metastases and primary CNS lymphomas (PCNSLs) may show very similar appearance. The aim of the study was to evaluate usefulness of multiparametric T2*DSC perfusion and diffusion MR imaging in the preoperative differentiation of these tumors. Material and methods Seventy four solitary enhancing tumors (27 GBMs, 30 metastases, 17 PCNSLs) were enrolled in the study. Parameters of cerebral blood volume (rCBV), peak height (rPH), percentage of signal recovery (rPSR) and apparent diffusion coefficient (ADC) were assessed from the tumor core and the peritumoral non-enhancing T2-hyperintense zone. Results Within the tumor core there were no differences in perfusion and diffusion parameters between GBMs and metastases. Compared to GBMs and metastases, PCNSLs showed significantly lower rCBV and rPH, ADC as well as higher rPSR values. Max rCBV with a cutoff value of 2.18 demonstrated the highest accuracy of 0.98 in differentiating PCNSLs from other tumors. To distinguish GBMs from metastases analysis of the peritumoral zone was performed showing significantly higher rCBV, rPH and lower ADC values in GBMs with the highest accuracy of 0.94 found for max rCBV at a cutoff value of 0.98. Conclusions Max rCBV seems to be the most important parameter to differentiate GBMs, metastases and PCNSLs. Analysis of max rCBV within the tumor core enables to distinguish hypoperfused
AIMS The objectives of the study were to assess the usefulness of measurements of apparent diffus... more AIMS The objectives of the study were to assess the usefulness of measurements of apparent diffusion coefficient (ADC) in normal appearing white and grey matter (NAWM, NAGM) in differential diagnosis between patients with hyperintense demyelinating plaques in the course of multiple sclerosis (MS) and other conditions presenting white matter hyperintensities (WMHs), as well as to evaluate the relationship between clinical data and ADC values in MS patients. MATERIAL AND METHODS The study comprised 66 patients with MS before treatment, 66 patients with WMHs and 64 control subjects (control group, CG), who underwent MRI (magnetic resonance imaging) examination including diffusion weighted imaging (DWI) with a 1.5 T MR unit. ADC measurements were obtained from NAWM of the cerebellum, pons as well as frontal, fronto-parietal and temporal regions bilaterally, and from NAGM of thalami and heads of caudate nuclei, using round region of interest (ROI) sized 200mm2. RESULTS The mean ADC values in frontal, fronto-parietal and temporal NAWM were significantly higher in the MS group than in subjects with WMHs and CG (p < .001), whereas the mean ADC value in pons was higher in MS than in CG (p < .05). In the MS group we observed a positive correlation between the Expanded Disability Status Scale (EDSS) and lesion load, between duration of the disease and mean ADC values and between lesion load and mean ADC values. CONCLUSION Our results suggest that ADC measurements may support the differential diagnosis between MS and other conditions associated with white matter hyperintensities. The most significant changes were observed in temporal white matter regions.
Poster: "ECR 2016 / C-1492 / Do the results of psychological tests correlate with the metabo... more Poster: "ECR 2016 / C-1492 / Do the results of psychological tests correlate with the metabolic measurements from the posterior cingulate gyrus in patients with mild cognitive impairment?" by: "A. Zimny, D. Szczesniak, R. Wojtynska, E. Trypka, J. Bladowska, M. Sąsiadek; Wroclaw/PL"
Poster: "ECR 2016 / C-0520 / Differentiation of hemangioblastomas from pilocytic astrocytoma... more Poster: "ECR 2016 / C-0520 / Differentiation of hemangioblastomas from pilocytic astrocytomas using perfusion-weighted MR imaging." by: "M. Neska-Matuszewska1, A. Zimny2, J. Bladowska1, M. Sąsiadek1; 1Wroclaw/PL, 2Kamieniec Wroclawski/PL"
Poster: "ECR 2018 / C-1327 / Types of diagnostic catheters used in carotid and vertebral ang... more Poster: "ECR 2018 / C-1327 / Types of diagnostic catheters used in carotid and vertebral angiographies - single centre experience." by: "K. Switon, M. Guzinski, J. Garcarek, M. Sąsiadek; Wroclaw/PL"
Poster: "ECR 2016 / C-1186 / Dual energy CT in loosening of revision hip prosthesis: a compa... more Poster: "ECR 2016 / C-1186 / Dual energy CT in loosening of revision hip prosthesis: a comparison between MARS and non-MARS images." by: "M. Guzinski, L. Waszczuk, K. J. Kubicki, A. Kochman, M. Morawska-Kochman, M. Sąsiadek; Wroclaw/PL"
Poster: "ECR 2013 / C-2452 / Usefulness of diffusion tensor MR imaging for the assessment of... more Poster: "ECR 2013 / C-2452 / Usefulness of diffusion tensor MR imaging for the assessment of intramedullary changes of the cervical spinal cord in different stages of degenerative cervical spine stenosis" by: "A. Banaszek, J. Bladowska, P. Szewczyk, A. Zimny, P. Podgorski, M. Sąsiadek; Wroclaw/PL"
Dolichoectasia of the circle of Willis arteries and fusiform aneurysm of basilar artery – case re... more Dolichoectasia of the circle of Willis arteries and fusiform aneurysm of basilar artery – case report and
Analysis of anatomical variations of the main arteries branching from the abdominal aorta, with 6... more Analysis of anatomical variations of the main arteries branching from the abdominal aorta, with 64-detector
Personal experiences in direct ultrasound-guided injection of thrombin into the lumen of pseudoan... more Personal experiences in direct ultrasound-guided injection of thrombin into the lumen of pseudoaneurysm as a method of treatment in case of iatrogenic femoral
females at baseline. Subjects underwent MRI sessions at both 3T and 7T, completed a neuropsycholo... more females at baseline. Subjects underwent MRI sessions at both 3T and 7T, completed a neuropsychological test battery and performed a VO2max test both at baseline and post-intervention. Hippocampal volume was calculated from segmentations obtained from Freesurfer and CBV was calculated according to the Bookend method [4]. To this end, hippocampal T1 values were determined from T1 tissue maps and T1 blood values were measured in the sagittal sinus. Here we report on the baseline data from the NEUROSHAPE trial. Pearson correlation coefficients are used to study the association between hippocampal volume, CBV and VO2max. Post-intervention data are being processed. Results: We found a correlation between baseline VO2max and both left and right hippocampal volume (left: r = 0.428; p = 0.003; right r = 0.425; p = 0.003). However, preliminary analyses in a subsample of participants (N = 37) did not show an association between baseline VO2max and hippocampal CBV (left: r = 0.29 p = 0.09; right: r = 0.05 p = 0.76). Moreover, no correlation was found between hippocampal volume and CBV (left: r = 0.14 p = 0.40; right: r = 0.28 p = 0.09). Conclusions: In accordance with previous findings in elderly people, we confirm an association between hippocampal volume and cardiovascular fitness also in young healthy adults. However, in contrast to previous findings, we did not find an association between cardiovascular fitness and hippocampal CBV. This could be due to the fact that we have so far only analyzed the whole hippocampus, even though previous studies have mainly observed angiogenesis specifically in the dentate gyrus. Ongoing analyses, which will be presented, focus on hippocampal subfields and the effect of the exercise intervention.
Authors present the case of recurrent bronchial carcinoid in the right main bronchus, in patient ... more Authors present the case of recurrent bronchial carcinoid in the right main bronchus, in patient who had previously right upper lobectomy due to the tumor of the same pathomorphological type. The recurrence was accompanied by pulmonary emphysema of the right lower lobe.
Introduction In conventional MR examinations glioblastomas multiforme (GBMs), metastases and prim... more Introduction In conventional MR examinations glioblastomas multiforme (GBMs), metastases and primary CNS lymphomas (PCNSLs) may show very similar appearance. The aim of the study was to evaluate usefulness of multiparametric T2*DSC perfusion and diffusion MR imaging in the preoperative differentiation of these tumors. Material and methods Seventy four solitary enhancing tumors (27 GBMs, 30 metastases, 17 PCNSLs) were enrolled in the study. Parameters of cerebral blood volume (rCBV), peak height (rPH), percentage of signal recovery (rPSR) and apparent diffusion coefficient (ADC) were assessed from the tumor core and the peritumoral non-enhancing T2-hyperintense zone. Results Within the tumor core there were no differences in perfusion and diffusion parameters between GBMs and metastases. Compared to GBMs and metastases, PCNSLs showed significantly lower rCBV and rPH, ADC as well as higher rPSR values. Max rCBV with a cutoff value of 2.18 demonstrated the highest accuracy of 0.98 in differentiating PCNSLs from other tumors. To distinguish GBMs from metastases analysis of the peritumoral zone was performed showing significantly higher rCBV, rPH and lower ADC values in GBMs with the highest accuracy of 0.94 found for max rCBV at a cutoff value of 0.98. Conclusions Max rCBV seems to be the most important parameter to differentiate GBMs, metastases and PCNSLs. Analysis of max rCBV within the tumor core enables to distinguish hypoperfused
AIMS The objectives of the study were to assess the usefulness of measurements of apparent diffus... more AIMS The objectives of the study were to assess the usefulness of measurements of apparent diffusion coefficient (ADC) in normal appearing white and grey matter (NAWM, NAGM) in differential diagnosis between patients with hyperintense demyelinating plaques in the course of multiple sclerosis (MS) and other conditions presenting white matter hyperintensities (WMHs), as well as to evaluate the relationship between clinical data and ADC values in MS patients. MATERIAL AND METHODS The study comprised 66 patients with MS before treatment, 66 patients with WMHs and 64 control subjects (control group, CG), who underwent MRI (magnetic resonance imaging) examination including diffusion weighted imaging (DWI) with a 1.5 T MR unit. ADC measurements were obtained from NAWM of the cerebellum, pons as well as frontal, fronto-parietal and temporal regions bilaterally, and from NAGM of thalami and heads of caudate nuclei, using round region of interest (ROI) sized 200mm2. RESULTS The mean ADC values in frontal, fronto-parietal and temporal NAWM were significantly higher in the MS group than in subjects with WMHs and CG (p < .001), whereas the mean ADC value in pons was higher in MS than in CG (p < .05). In the MS group we observed a positive correlation between the Expanded Disability Status Scale (EDSS) and lesion load, between duration of the disease and mean ADC values and between lesion load and mean ADC values. CONCLUSION Our results suggest that ADC measurements may support the differential diagnosis between MS and other conditions associated with white matter hyperintensities. The most significant changes were observed in temporal white matter regions.
Poster: "ECR 2016 / C-1492 / Do the results of psychological tests correlate with the metabo... more Poster: "ECR 2016 / C-1492 / Do the results of psychological tests correlate with the metabolic measurements from the posterior cingulate gyrus in patients with mild cognitive impairment?" by: "A. Zimny, D. Szczesniak, R. Wojtynska, E. Trypka, J. Bladowska, M. Sąsiadek; Wroclaw/PL"
Uploads
Papers by Marek Sasiadek