Publications

Digital Variance Angiography as a paradigm shift in carbon-dioxide angiography

Investigative Radiology: February 28, 2019, doi: 10.1097/RLI.0000000000000555
Óriás, Viktor Imre, MD; Gyánó, Marcell, MD; Góg, István, MD; Szöllősi, Dávid, MD; Veres, Dániel S...

Our aim was to investigate the feasibility of digital variance angiography (DVA) in lower extremity CO2angiography and to compare the quantitative and qualitative performance of the new image processing technique with that of the current reference standard digital subtraction angiography (DSA).

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DIGITAL VARIANCE ANGIOGRAPHY AS A PARADIGM SHIFT IN CARBON-DIOXIDE ANGIOGRAPHY

Leipzig Interventional Course (LINC), Germany, 22-25 January, 2019
Viktor I. Orias , David Szollosi, Istvan Gog, Krisztian Szigeti, Szabolcs Osvath, Peter Sotonyi, ...

Our aim was to investigate the feasibility of digital variance angiography (DVA) in lower extremity CO2 angiography and to compare the performance of DVA to digital subtraction angiography (DSA).

Our study enrolled 24 patients at two study centres (HVC and BKCH) with different image ac...


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TIME DIFFERENTIATION BASED IMAGE ENHANCEMENT ALGORITHMS FOR KINETIC IMAGING

Leipzig Interventional Course (LINC), Germany, 22-25 January, 2019
Dávid Szöllősi, Marcell Gyánó, Viktor Imre Óriás, Szabolcs Osváth, Péter Sótonyi, Krisztián Szigeti

Purpose: Our purpose was to design an algorithm that can suppress the motion artifacts and enhance the contrast of X-ray angiographic images.

Materials and Methods: Carotid, abdominal, and lower extremity X-ray angiography image series were preprocessed with two different algorithms us...


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EVALUATION OF KINETIC IMAGING IN CAROTID AND CEREBRAL X-RAY ANGIOGRAPHY

Leipzig Interventional Course (LINC), Germany, 22-25 January, 2019
Viktor I. Orias , David Szollosi, Istvan Gog, Krisztian Szigeti, Szabolcs Osvath, Peter Sotonyi, ...

Our objective was to compare the performance of kinetic imaging and traditional digital subtraction angiography (DSA) in carotid and cerebral X‐ray angiography setting.

Kinetic imaging is a novel X‐ray image processing method aiding the visualization of contrast motion. The algorithm p...


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Kinetic Imaging in Lower Extremity Arteriography: Comparison to Digital Subtraction Angiography

Radiology. 2019; 290:246-253. doi: 10.1148/radiol.2018172927. Epub 2018 Oct 16.
Marcell Gyánó, István Góg, Viktor Óriás, Zoltán Ruzsa, Balázs Nemes, Csaba Csobay-Novák, Zoltán O...

Purpose: To compare the image quality produced by kinetic imaging in X-ray angiography and the current reference standard digital subtraction angiography (DSA).

Materials and Methods: Our prospective observational crossover study enrolled 42 patients undergoing lower limb X-ray angiograp...


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REAL‐TIME IMAGE QUALITY ENHANCEMENT WITH KINETIC IMAGING IN CARBON‐DIOXIDE ANGIOGRAPHY

ESVS 32nd Annual Meeting, Valencia, Spain, 24-28 September, 2018
Viktor I. Orias, Marcell Gyano, David Szollosi, Istvan Gog, Krisztian Szigeti, Szabolcs Osvath, B...

We can conclude that kinetic imaging provides significant image quality enhancement in CO2A. The better image quality potentiates the making of adequate diagnosis. The adjustment of gas injection parameters could eliminate further disadvantages of the technique and dynamic information could also ...

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EVALUATION OF KINETIC IMAGING IN CAROTID AND CEREBRAL X-RAY ANGIOGRAPHY

ESVS 32nd Annual Meeting, Valencia, Spain, 24-28 September, 2018
Viktor I. Orias, David Szollosi, Istvan Gog, Krisztian Szigeti, Szabolcs Osvath, Peter Sotonyi, Z...

DVAs visualized the same anatomical structures with better image quality than DSA. The image quality of half-dose DVA images allows us to further decrease the contrast agent dose. Parametric images could provide realtime periprocedural information about flow dynamics and tissue perfusion.

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Real-time image quality enhancement with kinetic imaging in carbon-dioxide angiography

CIRSE, Lisbon, Portugal, 09.22.2018-09.25.2018
V. Óriás, M. Gyánó, D. Szöllősi, I. Góg, Z. Ruzsa, B. Nemes, K. Szigeti, S. Osváth, P. Sótonyi

Carbon‑dioxide angiography (CO2A) is a decades‑old invasive diagnostic technique preferred in patients suffering from renal failure or iodine allergy. Widespread usage of the technique is mainly held up by the fact that digital subtraction angiography (DSA) images provide remarkably lower image q...

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Quality improvement of kinetic images with a guided transformation

CIRSE, Lisbon, Portugal, 09.22.2018-09.25.2018
Dávid Szöllősi, Marcell Gyánó, Viktor Imre Óriás, Szabolcs Osváth, Krisztián Szigeti, Péter Sótonyi

Our purpose was to create an image processing algorithm that can eliminate movement artifacts and increase the visibility of vessels on X-ray angiography images.
Abdominal and lower extremity X-ray angiography images were processed using a self-implemented algorithm in Matlab 2016a (Mathwork...


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75% X-ray dose reduction in angiography - comparing kinetic imaging with conventional DSA

CIRSE, Lisbon, Portugal, 09.22.2018-09.25.2018
M. Gyano, B. Nemes, D. Veres, D. Szöllősi, S. Osváth, K. Szigeti, P. Sótonyi

Kinetic imaging (KI) analyses pixel-intensity variations of an X-ray image series. Earlier findings indicate that KI of X-ray angiograms provide identical information to DSA, but with better signal to noise ratio. Therefore, using KI, the usual quality of DSA images becomes available at a lower x...

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Evaluation of kinetic imaging in carotid and cerebral X‑ray angiography

CIRSE, Lisbon, Portugal, 09.22.2018-09.25.2018
V. Óriás, D. Szöllősi, I. Góg, K. Szigeti, S. Osváth, P. Sótonyi, Z. Ruzsa

Our objective was to compare the performance of kinetic imaging and traditional digital subtraction angiography (DSA) in carotid and cerebral X‑ray angiography setting.
Kinetic imaging is a real‑time analysis of X‑ray image series aiding the visualization of contrast motion. The algorithm pro...


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New alternative in angiography: Randomized comparison of DSA and kinetic imaging

euroPCR, Paris, France, 22-25 May, 2018
V.I. Óriás, M. Gyánó, I. Góg, Z. Ruzsa, B. Nemes, C. Csobay-Novák, Z. Olah, Z. Nagy, B. Merkely, ...

Purpose: To compare the performance of kinetic imaging in X-ray angiography and digital substraction angiography (DSA)
Methods and Materials: We enrolled 42 patients undergoing lower limb X-ray angiography between February 2017 and June 2017. We compared the signal-to noise ratio (SNR) of DSA ...


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A Randomized Comparison of Digital Subtraction Angiography and Kinetic Imaging

LINC, Leipzig, Germany, 01.29.2018-02.02.2018
Marcell Gyánó, István Góg, Viktor Óriás, Balázs Nemes, Béla Merkely, Krisztián Szigeti, Szabolcs ...

Purpose: To compare the performance of kinetic imaging in X-ray angiography and the current gold standard digital subtraction angiography (DSA).
Materials and Methods: An observational crossover study enrolled 42 patients undergoing lower limb X-ray angiography between February 2017 and August...


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X-ray angiography using kinetic imaging: optimizing signal-to-noise ratio

ECR, Wien, Austria, 02.28.2018-03.04.2018
István Góg, Viktor Óriás, Marcell Gyánó, Zoltán Ruzsa, Balázs Nemes, Béla Merkely, Krisztián Szig...

Purpose: Kinetic imaging, a newly described x-ray image analysis technology, allows visualization of movement on x-ray image series. X-ray angiography visualizes blood vessels by identifying the motion of contrast agent. Here we aim to construct and verify a simple model of the image signal-to-no...

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New alternative in angiography: Randomized comparison of DSA and kinetic imaging

ECR, Wien, Austria, 02.28.2018-03.04.2018
M. Gyánó, I. Góg, V.I. Óriás, Z. Ruzsa, B. Nemes, C. Csobay-Novák, Z. Olah, Z. Nagy, B. Merkely, ...

Purpose: To compare the performance of kinetic imaging in X-ray angiography and digital substraction angiography (DSA)
Methods and Materials: We enrolled 42 patients undergoing lower limb X-ray angiography between February 2017 and June 2017. We compared the signal-to noise ratio (SNR) of DSA ...


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