当前位置： SCI文献检索 > EUROPEAN RADIOLOGY期刊下所有文献 > A new technique for noise reduction at coronary CT angiography with multi-phase data-averaging and non-rigid image registration.

A new technique for noise reduction at coronary CT angiography with multi-phase data-averaging and non-rigid image registration.

Abstract：

OBJECTIVES:To investigate the feasibility of a newly developed noise reduction technique at coronary CT angiography (CTA) that uses multi-phase data-averaging and non-rigid image registration. METHODS:Sixty-five patients underwent coronary CTA with prospective ECG-triggering. The range of the phase window was set at 70-80% of the R-R interval. First, three sets of consecutive volume data at 70%, 75% and 80% of the R-R interval were prepared. Second, we applied non-rigid registration to align the 70% and 80% images to the 75% image. Finally, we performed weighted averaging of the three images and generated a de-noised image. The image noise and contrast-to-noise ratio (CNR) in the proximal coronary arteries between the conventional 75% and the de-noised images were compared. Two radiologists evaluated the image quality using a 5-point scale (1, poor; 5, excellent). RESULTS:On de-noised images, mean image noise was significantly lower than on conventional 75% images (18.3 HU ± 2.6 vs. 23.0 HU ± 3.3, P < 0.01) and the CNR was significantly higher (P < 0.01). The mean image quality score for conventional 75% and de-noised images was 3.9 and 4.4, respectively (P < 0.01). CONCLUSIONS:Our method reduces image noise and improves image quality at coronary CTA. KEY POINTS:• We introduce a new method for image noise reduction at cardiac CT. • Multiple data acquisitions of an object and their averaging yield lower noise. • Our method uses multi-phase images reconstructed from unused redundant imaging data. • It reduces image noise by averaging multi-phase images transformed by non-rigid registration. • This method achieves a 20% image noise reduction at cardiac CT.

journal_name

Eur Radiol

journal_title

European radiology

authors

Tatsugami F,Higaki T,Nakamura Y,Yamagami T,Date S,Fujioka C,Kiguchi M,Kihara Y,Awai K

doi

10.1007/s00330-014-3381-9

subject

Has Abstract

pub_date

2015-01-01 00:00:00

pages

41-8

issue

1

eissn

0938-7994

issn

1432-1084

journal_volume

25

pub_type

杂志文章

相关文献

EUROPEAN RADIOLOGY文献大全
  • Repositioning of malpositioned or flipped central venous catheters.

    abstract：:Primary misplaced or secondary flipped implanted catheters are located mostly in the right jugular vein. We demonstrate an effective method to replace fix implanted catheters such as Ports, Grochomg or Hickman catheters. Using a femoral venous approach, replacement into the superior vena cava can easily be done with a...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-001-1151-y

    authors： Thalhammer A,Jacobi V,Balzer J,Vogl TJ

    更新日期：2002-03-01 00:00:00

  • Quantitative analysis of dynamic airway changes after methacholine and salbutamol inhalation on xenon-enhanced chest CT.

    abstract：OBJECTIVES:To investigate the dynamic changes in airways in response to methacholine and salbutamol inhalation and to correlate the xenon ventilation index on xenon-enhanced chest CTs in asthmatics. METHODS:Thirty-one non-smokers (6 normal, 25 asthmatics) underwent xenon-enhanced chest CT and pulmonary function tests....

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-012-2516-0

    authors： Park SJ,Lee CH,Goo JM,Kim JH,Park EA,Jung JW,Park HW,Cho SH

    更新日期：2012-11-01 00:00:00

  • Long-term MRI-guided vacuum-assisted breast biopsy results of 600 single-center procedures.

    abstract：OBJECTIVES:The objective of this study is to report on the performance of the MRI-guided VABB in our center and to look at the long-term outcome of biopsies with benign histology over a period of 19 years. METHODS:In a single-center retrospective review study, data of 600 VABB procedures performed between September 19...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-020-07392-6

    authors： Lambert J,Steelandt T,Heywang-Köbrunner SH,Gieraerts K,Van Den Berghe I,Van Ongeval C,Casselman JW

    更新日期：2021-01-18 00:00:00

  • Noncontrast computer tomography-based radiomics model for predicting intracerebral hemorrhage expansion: preliminary findings and comparison with conventional radiological model.

    abstract：OBJECTIVES:To develop a radiomics model for predicting hematoma expansion in patients with intracerebral hemorrhage (ICH) and to compare its predictive performance with a conventional radiological feature-based model. METHODS:We retrospectively analyzed 251 consecutive patients with acute ICH. Two radiologists indepen...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-019-06378-3

    authors： Xie H,Ma S,Wang X,Zhang X

    更新日期：2020-01-01 00:00:00

  • Radiation exposure and patient experience during percutaneous coronary intervention using radial and femoral artery access.

    abstract：:The aim of this study was to evaluate radiation dose and patient discomfort/pain in radial artery access vs femoral artery access in percutaneous coronary intervention (PCI). Dose-area product (DAP) was measured non-randomised for 114 procedures using femoral access and for 55 using radial access. The patients also re...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-004-2322-4

    authors： Geijer H,Persliden J

    更新日期：2004-09-01 00:00:00

  • Workflow-centred evaluation of an automatic lesion tracking software for chemotherapy monitoring by CT.

    abstract：OBJECTIVES:In chemotherapy monitoring, an estimation of the change in tumour size is an important criterion for the assessment of treatment success. This requires a comparison between corresponding lesions in the baseline and follow-up computed tomography (CT) examinations. We evaluate the clinical benefits of an autom...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-012-2545-8

    authors： Moltz JH,D'Anastasi M,Kiessling A,Pinto dos Santos D,Schülke C,Peitgen HO

    更新日期：2012-12-01 00:00:00

  • Impact of model-based iterative reconstruction on low-contrast lesion detection and image quality in abdominal CT: a 12-reader-based comparative phantom study with filtered back projection at different tube voltages.

    abstract：OBJECTIVES:To evaluate the impact of model-based iterative reconstruction (MBIR) on image quality and low-contrast lesion detection compared with filtered back projection (FBP) in abdominal computed tomography (CT) of simulated medium and large patients at different tube voltages. METHODS:A phantom with 45 hypoattenua...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-017-4825-9

    authors： Euler A,Stieltjes B,Szucs-Farkas Z,Eichenberger R,Reisinger C,Hirschmann A,Zaehringer C,Kircher A,Streif M,Bucher S,Buergler D,D'Errico L,Kopp S,Wilhelm M,Schindera ST

    更新日期：2017-12-01 00:00:00

  • Comparison of semi-automated and manual methods to measure the volume of liver tumours on MDCT images.

    abstract：OBJECTIVE:To retrospectively compare semi-automated and manual volume measurements of malignant liver tumours and inter- and intra-observer variability using commercially available software. METHODS:This study was performed on 60 consecutive patients with untreated liver metastases (30) and HCCs (30), i.e. 92 lesions ...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-010-2013-2

    authors： Dubus L,Gayet M,Zappa M,Abaleo L,De Cooman A,Orieux G,Vilgrain V

    更新日期：2011-05-01 00:00:00

  • Differences in perfusion parameters between upper and lower lumbar vertebral segments with dynamic contrast-enhanced MRI (DCE MRI).

    abstract：:To investigate the influence of age, sex and spinal level on perfusion parameters of normal lumbar bone marrow with dynamic contrast-enhanced MRI (DCE MRI). Sixty-seven subjects referred for evaluation of low back pain or sciatica underwent DCE MRI of the lumbar spine. After subtraction of dynamic images, a region of ...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-008-0943-8

    authors： Savvopoulou V,Maris TG,Vlahos L,Moulopoulos LA

    更新日期：2008-09-01 00:00:00

  • MR imaging in sports-related glenohumeral instability.

    abstract：:Sports-related shoulder pain and injuries represent a common problem. In this context, glenohumeral instability is currently believed to play a central role either as a recognized or as an unrecognized condition. Shoulder instabilities can roughly be divided into traumatic, atraumatic, and microtraumatic glenohumeral ...

    journal_title：European radiology

    pub_type： 杂志文章,评审

    doi：10.1007/s00330-006-0258-6

    authors： Woertler K,Waldt S

    更新日期：2006-12-01 00:00:00

  • Contrast agent bolus tracking with a fixed threshold or a manual fast start for coronary CT angiography.

    abstract：OBJECTIVES:Comparison of bolus tracking with a fixed threshold versus a manual fast start for coronary CT angiography. METHODS:We retrospectively analysed 320-row coronary CT angiography of 50 patients with suspected or known coronary artery disease. Twenty-five examinations were initiated by a bolus tracking method (...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-014-3148-3

    authors： Stenzel F,Rief M,Zimmermann E,Greupner J,Richter F,Dewey M

    更新日期：2014-06-01 00:00:00

  • Post-imaging pulmonary nodule mathematical prediction models: are they clinically relevant?

    abstract：OBJECTIVES:Post-imaging mathematical prediction models (MPMs) provide guidance for the management of solid pulmonary nodules by providing a lung cancer risk score from demographic and radiologists-indicated imaging characteristics. We hypothesized calibrating the MPM risk score threshold to a local study cohort would r...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-019-06168-x

    authors： Uthoff J,Koehn N,Larson J,Dilger SKN,Hammond E,Schwartz A,Mullan B,Sanchez R,Hoffman RM,Sieren JC,COPDGene Investigators.

    更新日期：2019-10-01 00:00:00

  • Delayed enhancement imaging of myocardial viability: low-dose high-pitch CT versus MRI.

    abstract：OBJECTIVES:To evaluate the accuracy of high-pitch delayed enhancement (DE) CT for the assessment of myocardial viability with MRI as the reference standard. METHODS:Twenty-four patients (mean age 66.9 ± 9.2 years) with coronary artery disease underwent DE imaging with 128-slice dual-source CT (prospective electrocardi...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-011-2149-8

    authors： Goetti R,Feuchtner G,Stolzmann P,Donati OF,Wieser M,Plass A,Frauenfelder T,Leschka S,Alkadhi H

    更新日期：2011-10-01 00:00:00

  • Alveolar soft part sarcoma.

    abstract：:We report a case of alveolar soft part sarcoma (ASPS) of the thigh with lung metastases in a 22-year-old woman. The findings of digital subtraction angiography (DSA) and MRI contributed to the diagnosis of ASPS. Especially dynamic contrast-enhanced MRI was useful for evaluating the effect of chemoembolotherapy. ...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s003300050477

    authors： Nakanishi K,Araki N,Yoshikawa H,Hashimoto T,Nakamura H

    更新日期：1998-01-01 00:00:00

  • Improvement of post-gadolinium contrast with magnetization transfer.

    abstract：:Magnetization transfer (MT) provides post-gadolinium contrast improvement through decreasing the tissue signal. Our study had two aims: to analyse the effect of MT qualitatively and quantitatively in 13 patients, and to analyse in vitro the competition between two relaxation phenomena, dipole-dipole which is character...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/pl00006889

    authors： Huot P,Dousset V,Hatier F,Degreze P,Carlier P,Caillé JM

    更新日期：1997-01-01 00:00:00

  • Value of negative spiral CT angiography in patients with suspected acute PE: analysis of PE occurrence and outcome.

    abstract：:The aim of this study was to analyze pulmonary embolism (PE) occurrence and retrospective clinical outcome in patients with clinically suspected acute PE and a negative spiral CT angiography (SCTA) of the pulmonary arteries. Within a 35-month period, 485 consecutive patients with clinical symptoms of acute PE underwen...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-003-2016-3

    authors： Krestan CR,Klein N,Fleischmann D,Kaneider A,Novotny C,Kreuzer S,Riedl C,Minar E,Janata K,Herold CJ

    更新日期：2004-01-01 00:00:00

  • Neoadjuvant chemotherapy in breast cancer-response evaluation and prediction of response to treatment using dynamic contrast-enhanced and diffusion-weighted MR imaging.

    abstract：OBJECTIVE:To explore the predictive value of MRI parameters and tumour characteristics before neoadjuvant chemotherapy (NAC) and to compare changes in tumour size and tumour apparent diffusion coefficient (ADC) during treatment, between patients who achieved pathological complete response (pCR) and those who did not. ...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-010-2020-3

    authors： Fangberget A,Nilsen LB,Hole KH,Holmen MM,Engebraaten O,Naume B,Smith HJ,Olsen DR,Seierstad T

    更新日期：2011-06-01 00:00:00

  • Herlyn-Werner-Wunderlich syndrome: a rare cause of infertility (2009: 2b).

    abstract：:Uterus didelphys with obstructed hemivagina and ipsilateral renal agenesis is a rare and specific entity referred to as Herlyn-Werner-Wunderlich syndrome. It usually presents after menarche with remittent pelvic pain and a palpable pelvic mass due to hematocolpos. It rarely presents with primary infertility in early a...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-008-1085-8

    authors： Sarac A,Demir MK

    更新日期：2009-05-01 00:00:00

  • Macrocyclic contrast agents for magnetic resonance imaging of chronic myocardial infarction: intraindividual comparison of gadobutrol and gadoterate meglumine.

    abstract：OBJECTIVES:To compare 0.15 mmol/kg gadobutrol for late gadolinium enhancement (LGE) imaging of chronic myocardial infarction with a relaxivity-adjusted dose of gadoterate meglumine (Gd-DOTA). METHODS:Seventeen patients with suspected chronic myocardial infarction underwent LGE imaging at 1.5 T, acquiring an inversion-...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-012-2563-6

    authors： Wagner M,Schilling R,Doeblin P,Huppertz A,Luhur R,Schwenke C,Maurer M,Hamm B,Taupitz M,Durmus T

    更新日期：2013-01-01 00:00:00

  • Computed tomography-guided lung biopsy: a randomized controlled trial of low-dose versus standard-dose protocol.

    abstract：OBJECTIVES:To assess the relative diagnostic utility of low- and standard-dose computed tomography (CT)-guided lung biopsy. METHODS:In this single-center, single-blind, prospective, randomized controlled trial, patients were enrolled between November 2016 and June 2017. Enrolled study participants were randomly select...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-019-06464-6

    authors： Fu YF,Li GC,Xu QS,Shi YB,Wang C,Wang T

    更新日期：2020-03-01 00:00:00

  • Ultrasound-guided core-needle biopsy of the testis for focal indeterminate intratesticular lesions.

    abstract：:The aim of this study was to evaluate ultrasound (US)-guided core-needle testicular biopsy. Twelve biopsies were performed in eleven patients, under US guidance using disposable 16- or 18-gauge needles, between April 2003 and October 2006. Details were entered on a database and records reviewed 9 months to 3 years aft...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-008-1072-0

    authors： Soh E,Berman LH,Grant JW,Bullock N,Williams MV

    更新日期：2008-12-01 00:00:00

  • Ablation of colorectal liver metastases by irreversible electroporation: results of the COLDFIRE-I ablate-and-resect study.

    abstract：OBJECTIVES:Irreversible electroporation (IRE) is a new ablation technique that relies on high-voltage electrical pulses. This clinical study evaluates the pathological response of colorectal liver metastases (CRLM) treated with IRE and the clinical safety and feasibility. METHODS:Ten patients with resectable CRLM were...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-014-3259-x

    authors： Scheffer HJ,Nielsen K,van Tilborg AA,Vieveen JM,Bouwman RA,Kazemier G,Niessen HW,Meijer S,van Kuijk C,van den Tol MP,Meijerink MR

    更新日期：2014-10-01 00:00:00

  • Prospective study aiming to compare 2D mammography and tomosynthesis + synthesized mammography in terms of cancer detection and recall. From double reading of 2D mammography to single reading of tomosynthesis.

    abstract：OBJECTIVES:To evaluate tomosynthesis compared with 2D-mammography in cancer detection and recalls in a screening-programme, and assess performing synthesized instead of 2D, and compare double reading of 2D with single reading of tomosynthesis. METHODS:Women (age 50-69 years) participating in the screening-programme we...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-017-5219-8

    authors： Romero Martín S,Raya Povedano JL,Cara García M,Santos Romero AL,Pedrosa Garriguet M,Álvarez Benito M

    更新日期：2018-06-01 00:00:00

  • CT perfusion imaging of the liver and the spleen in patients with cirrhosis: Is there a correlation between perfusion and portal venous hypertension?

    abstract：OBJECTIVES:To correlate hepatic and splenic CT perfusion parameters with hepatic venous pressure gradient (HVPG) measurements in patients with cirrhosis. METHODS:Twenty-one patients with cirrhosis (males, 17; females, 4; mean ± SD age, 57 ± 7 years) underwent hepatic and splenic perfusion CT on a 320-detector row volu...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-017-4788-x

    authors： Talakić E,Schaffellner S,Kniepeiss D,Mueller H,Stauber R,Quehenberger F,Schoellnast H

    更新日期：2017-10-01 00:00:00

  • MR urography for the preoperative evaluation of living renal donors.

    abstract：:The purpose of this study was to assess the image quality and diagnostic value of MR urography in detecting abnormalities of the urinary collecting system relevant for the preoperative evaluation of living renal donors. Study subjects were selected from the existing intravenous urography (IVU) reports: 18 consecutive ...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-002-1438-7

    authors： Bakker J,De Kort GA,Lo R,Van Gils AP,Hené RJ,Lock TM,Burger H,Beek FJ

    更新日期：2002-08-01 00:00:00

  • Inter-scan and inter-scanner variation of quantitative dual-energy CT: evaluation with three different scanner types.

    abstract：OBJECTIVES:To investigate inter-scan and inter-scanner variation of iodine concentration (IC) and attenuation in virtual monoenergetic images at 65 keV (HU65keV) in patients with repeated abdominal examinations on dual-source (dsDECT), rapid kV switching (rsDECT), and dual-layer detector DECT (dlDECT). METHODS:We retr...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-020-07611-0

    authors： Lennartz S,Parakh A,Cao J,Zopfs D,Große Hokamp N,Kambadakone A

    更新日期：2021-01-14 00:00:00

  • Diagnosing adenomyosis with MRI: a prospective study revisiting the junctional zone thickness cutoff of 12 mm as a diagnostic marker.

    abstract：OBJECTIVES:To assess the diagnostic accuracy of a junctional zone (JZ) thickness of ≥ 12 mm and morphological features of the JZ in MRI in diagnosing adenomyosis in a premenopausal study population. METHODS:This single-center, prospective observational study consecutively enrolled 93 premenopausal women suffering from...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-019-06308-3

    authors： Tellum T,Matic GV,Dormagen JB,Nygaard S,Viktil E,Qvigstad E,Lieng M

    更新日期：2019-12-01 00:00:00

  • Cerebrospinal fluid dynamics in idiopathic normal pressure hydrocephalus on four-dimensional flow imaging.

    abstract：OBJECTIVES:To evaluate complex CSF movements and shear stress in patients with idiopathic normal pressure hydrocephalus (iNPH) on four-dimensional (4D) flow MRI. METHODS:Three-dimensional velocities and volumes of the reciprocating CSF movements through 12 ROIs from the foramen of Monro to the upper cervical spine wer...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-020-06825-6

    authors： Yamada S,Ishikawa M,Ito H,Yamamoto K,Yamaguchi M,Oshima M,Nozaki K

    更新日期：2020-08-01 00:00:00

  • Extra-axial brain tumors.

    abstract：:Meningiomas, schwannomas, metastases, maldevelopmental cysts, epidermoids, dermoids and bone tumors represent the vast majority of extra-axial brain tumors. The location of extra-axial brain tumors affects treatment planning and predicts their prognosis. Computed tomography and particularly magnetic resonance imaging ...

    journal_title：European radiology

    pub_type： 杂志文章,评审

    doi：10.1007/s00330-004-2557-0

    authors： Drevelegas A

    更新日期：2005-03-01 00:00:00

  • Everyman's prostate phantom: kiwi-fruit substitute for human prostates at magnetic resonance imaging, diffusion-weighted imaging and magnetic resonance spectroscopy.

    abstract：OBJECTIVES:To apply an easy-to-assemble phantom substitute for human prostates in T2-weighted magnetic resonance imaging (T2WI), diffusion-weighted imaging (DWI) and 3D magnetic resonance spectroscopy (MRS). METHODS:Kiwi fruit were fixed with gel hot and cold compress packs on two plastic nursery pots, separated by a ...

    journal_title：European radiology

    pub_type： 杂志文章

    doi：10.1007/s00330-016-4706-7

    authors： Mueller-Lisse UG,Murer S,Mueller-Lisse UL,Kuhn M,Scheidler J,Scherr M

    更新日期：2017-08-01 00:00:00