Stephan H. Polanec
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View article: Ultra-low-dose CT vs. chest X-ray in non-traumatic emergency department patients – a prospective randomised crossover cohort trial
Ultra-low-dose CT vs. chest X-ray in non-traumatic emergency department patients – a prospective randomised crossover cohort trial Open
The Department of Biomedical Imaging and Image-guided Therapy of Medical University of Vienna received funding from Siemens Healthineers (Erlangen, Germany) to employ two research assistants for one year.
View article: Influence of dilution on arterial-phase artifacts and signal intensity on gadoxetic acid–enhanced liver MRI
Influence of dilution on arterial-phase artifacts and signal intensity on gadoxetic acid–enhanced liver MRI Open
Objectives To investigate the effect of saline-diluted gadoxetic acid, done for arterial-phase (AP) artifact reduction, on signal intensity (SI), and hence focal lesion conspicuity on MR imaging. Methods We retrospectively examined 112 pat…
View article: Neuroradiological differentiation of white matter lesions in patients with multiple sclerosis and Fabry disease
Neuroradiological differentiation of white matter lesions in patients with multiple sclerosis and Fabry disease Open
View article: Rectal preparation significantly improves prostate imaging quality: Assessment of the PI-QUAL score with visual grading characteristics
Rectal preparation significantly improves prostate imaging quality: Assessment of the PI-QUAL score with visual grading characteristics Open
Rectal preparation significantly improved prostate imaging quality (PI-QUAL) and lesion visibility. Hence, a rectal preparation regimen consisting of a rectal cleansing enema and an endorectal gel filling could be considered.
View article: 4D perfusion CT of prostate cancer for image-guided radiotherapy planning: A proof of concept study
4D perfusion CT of prostate cancer for image-guided radiotherapy planning: A proof of concept study Open
PURPOSE: Advanced forms of prostate cancer (PCa) radiotherapy with either external beam therapy or brachytherapy delivery techniques aim for a focal boost and thus require accurate lesion localization and lesion segmentation for subsequent…
View article: Impact of the Kaiser score on clinical decision-making in BI-RADS 4 mammographic calcifications examined with breast MRI
Impact of the Kaiser score on clinical decision-making in BI-RADS 4 mammographic calcifications examined with breast MRI Open
View article: Reliability of high-resolution ultrasound and magnetic resonance arthrography of the shoulder in patients with sports-related shoulder injuries
Reliability of high-resolution ultrasound and magnetic resonance arthrography of the shoulder in patients with sports-related shoulder injuries Open
High resolution US is a reliable imaging modality for the rotator cuff, the LHB tendon, and the acromioclavicular joint, so for these structures we recommend a preference for US over MRA based on its diagnostic accuracy, comfortability, co…
View article: Diffusion‐Weighted MRI of Breast Cancer: Improved Lesion Visibility and Image Quality Using Synthetic b‐Values
Diffusion‐Weighted MRI of Breast Cancer: Improved Lesion Visibility and Image Quality Using Synthetic b‐Values Open
Background Diffusion‐weighted imaging (DWI) is an MRI technique with the potential to serve as an unenhanced breast cancer detection tool. Synthetic b‐values produce images with high diffusion weighting to suppress residual background sign…
View article: Kontrastmittelfreie Bildgebung der Prostata
Kontrastmittelfreie Bildgebung der Prostata Open
Biparametric examination protocols and the use of three-dimensional T2-weighted sequences are readily available methods that can be used to shorten the examination time without sacrificing diagnostic accuracy.
View article: EP-2028 Pilot study: Textural features of mpMRI for response assessment in prostate cancer patients
EP-2028 Pilot study: Textural features of mpMRI for response assessment in prostate cancer patients Open
View article: Impact of androgen deprivation therapy on apparent diffusion coefficient and T2w MRI for histogram and texture analysis with respect to focal radiotherapy of prostate cancer
Impact of androgen deprivation therapy on apparent diffusion coefficient and T2w MRI for histogram and texture analysis with respect to focal radiotherapy of prostate cancer Open
View article: Breast lesions classified as probably benign (BI-RADS 3) on magnetic resonance imaging: a systematic review and meta-analysis
Breast lesions classified as probably benign (BI-RADS 3) on magnetic resonance imaging: a systematic review and meta-analysis Open
View article: 3D T2-weighted imaging to shorten multiparametric prostate MRI protocols
3D T2-weighted imaging to shorten multiparametric prostate MRI protocols Open
View article: Multiparametric [11C]Acetate positron emission tomography-magnetic resonance imaging in the assessment and staging of prostate cancer
Multiparametric [11C]Acetate positron emission tomography-magnetic resonance imaging in the assessment and staging of prostate cancer Open
BackgroundThe aim of this study was to evaluate whether MP [11C]Acetate PET-MRI enables an accurate differentiation of benign and malignant prostate tumors as well as local and distant staging.Materials and methodsFifty-six cons…
View article: Respiratory motion artifacts during arterial phase imaging with gadoxetic acid: Can the injection protocol minimize this drawback?
Respiratory motion artifacts during arterial phase imaging with gadoxetic acid: Can the injection protocol minimize this drawback? Open
Purpose To determine which of three gadoxetic acid injection techniques best reduced the contrast‐related arterial‐phase motion artifacts. Materials and Methods This Institutional Review Board (IRB)‐approved, retrospective study included a…
View article: Multiparametric [18F]Fluorodeoxyglucose/ [18F]Fluoromisonidazole Positron Emission Tomography/ Magnetic Resonance Imaging of Locally Advanced Cervical Cancer for the Non-Invasive Detection of Tumor Heterogeneity: A Pilot Study
Multiparametric [18F]Fluorodeoxyglucose/ [18F]Fluoromisonidazole Positron Emission Tomography/ Magnetic Resonance Imaging of Locally Advanced Cervical Cancer for the Non-Invasive Detection of Tumor Heterogeneity: A Pilot Study Open
MP [18F]FDG/ [18F]FMISO PET/MRI in patients with cervical cancer facilitates the acquisition of independent predictive and prognostic imaging parameters. MP [18F]FDG/ [18F]FMISO PET/MRI enables insights into tumor biology on multiple level…
View article: MR-guided vacuum-assisted breast biopsy of MRI-only lesions: a single center experience
MR-guided vacuum-assisted breast biopsy of MRI-only lesions: a single center experience Open
View article: OC-0066: Prostate cancer radiation therapy response assessed with MRI and [11C]Acetate PET in the absence of a hybrid scanner
OC-0066: Prostate cancer radiation therapy response assessed with MRI and [11C]Acetate PET in the absence of a hybrid scanner Open