Search Results - "Nilsson Althen, Jonas"

Assessment of image quality in abdominal CT: potential dose reduction with model-based iterative reconstruction by Kataria, Bharti, Althén, Jonas Nilsson, Smedby, Örjan, Persson, Anders, Sökjer, Hannibal, Sandborg, Michael

“…Purpose To estimate potential dose reduction in abdominal CT by visually comparing images reconstructed with filtered back projection (FBP) and strengths of 3…”
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Image quality in CT thorax: effect of altering reconstruction algorithm and tube load by Kataria, Bharti, Woisetschläger, Mischa, Nilsson Althén, Jonas, Sandborg, Michael, Smedby, Örjan

“…Non-linear properties of iterative reconstruction (IR) algorithms can alter image texture. We evaluated the effect of a model-based IR algorithm (advanced…”
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Assessment of image quality in abdominal computed tomography: Effect of model-based iterative reconstruction, multi-planar reconstruction and slice thickness on potential dose reduction by Kataria, Bharti, Nilsson Althén, Jonas, Smedby, Örjan, Persson, Anders, Sökjer, Hannibal, Sandborg, Michael

“…•ADMIRE strength 3 renders images of acceptable clinical quality in abdominal CT.•For ADMIRE strength 5, dose reduction is limited to certain image…”
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IMPLICATIONS OF PATIENT CENTRING ON ORGAN DOSE IN COMPUTED TOMOGRAPHY by Kataria, Bharti, Sandborg, Michael, Althén, Jonas Nilsson

“…Automatic exposure control (AEC) in computed tomography (CT) facilitates optimisation of dose absorbed by the patient. The use of AEC requires appropriate…”
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Image quality and pathology assessment in CT Urography: when is the low-dose series sufficient? by Kataria, Bharti, Nilsson Althén, Jonas, Smedby, Örjan, Persson, Anders, Sökjer, Hannibal, Sandborg, Michael

“…Our aim was to compare CT images from native, nephrographic and excretory phases using image quality criteria as well as the detection of positive pathological…”
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Efficient quality assurance programs in radiology and nuclear medicine in Östergötland, Sweden by Sandborg, Michael, Althén, Jonas Nilsson, Gustafsson, Agnetha

“…Owners of imaging modalities using ionising radiation should have a documented quality assurance (QA) program, as well as methods to justify new radiological…”
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Image quality in CT thorax: effect of altering reconstruction algorithm and tube load: Image quality in CT thorax by Kataria, Bharti, Woisetschläger, Mischa, Nilsson Althén, Jonas, Sandborg, Michael, Smedby, Örjan

“…Non-linear properties of iterative reconstruction (IR) algorithms can alter image texture. We evaluated the effect of a model-basedIR algorithm (advanced…”
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Estimation of the dose to the unborn child at diagnostic X-ray examinations based on data registrerad in RIS/PACS by Helmrot, Ebba, Pettersson, Håkan, Sandborg, Michael, Nilsson Althen, Jonas

“…The aim of this work was to determine mean absorbed doses to the unborn child in common conventional X-ray and computed tomography (CT) examinations and to…”
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VERIFICATION OF INDICATED SKIN ENTRANCE AIR KERMA FORCARDIAC X-RAY-GUIDED INTERVENTION USING GAFCHROMIC FILM by Nilsson Althén, Jonas, Sandborg, Michael

“…The aim of this work was to verify the indicated maximum entrance surface air kerma (ESAK) using a GE Innova IGS 520 imaging system during cardiac…”
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Image quality assessments in abdominal CT: Relative importance of dose, iterative reconstruction strength and slice thickness by Kataria, B., Woisetschläger, M., Nilsson Althén, J., Sandborg, M., Smedby, Ö.

“…Low contrast resolution in abdominal computed tomography (CT) may be negatively affected by attempts to lower patient doses. Iterative reconstruction (IR)…”
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IMAGE QUALITY AND POTENTIAL DOSE REDUCTION USING ADVANCED MODELED ITERATIVE RECONSTRUCTION (ADMIRE) IN ABDOMINAL CT - A REVIEW by Kataria, B, Nilsson Althén, J, Smedby, Ö, Persson, A, Sökjer, H, Sandborg, M

“…Abstract Traditional filtered back projection (FBP) reconstruction methods have served the computed tomography (CT) community well for over 40 years. With the…”
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Patient Organ Radiation Doses During Treatment for Aneurysmal Subarachnoid Hemorrhage by Sandborg, M., Nilsson Althén, J., Pettersson, H., Rossitti, S.

“…Purpose The aim of this retrospective study was to estimate risk organ doses and to estimate radiation risks during the imaging work-up and treatment for…”
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Automatic tube-current modulation in CT—a comparison between different solutions by Nilsson, Jonas

“…In this study, tube-current modulation systems on two different CT equipments have been evaluated: Care Dose from Siemens and Auto mA from GE Medical Systems…”
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