• Image Quality
    • Uwe Joseph Joseph Schoepf
    • Uwe Joseph Joseph Schoepf: Influence Statistics

      Uwe Joseph Joseph Schoepf

      Uwe Joseph Joseph Schoepf

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      Medical University of South Carolina, Charleston, SC, USA | Department of Diagnostic Radiology, Jinling Hospital, Medical School of Nanjing University, 210002, Nanjing, ...

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      Uwe Joseph Joseph Schoepf:Expert Impact

      Concepts for whichUwe Joseph Joseph Schoepfhas direct influence:Image quality,Computed tomography,Coronary angiography,Radiation dose,Pulmonary embolism,Coronary artery,Myocardial perfusion,Coronary artery disease.

      Uwe Joseph Joseph Schoepf:KOL impact

      Concepts related to the work of other authors for whichfor which Uwe Joseph Joseph Schoepf has influence:Computed tomography,Image quality,Pulmonary embolism,Coronary angiography,Radiation dose,Artery disease,Iterative reconstruction.

      KOL Resume for Uwe Joseph Joseph Schoepf


      Medical University of South Carolina, Charleston, SC, USA


      Department of Radiology and Radiological Science, Medical University of South Carolina, Charleston, South Carolina, USA.


      Division of Cardiovascular Imaging (U.J.S., R.H.S., D.M.D.), Department of Radiology and Radiological Science, Medical University of South Carolina, Charleston, South Carolina

      Department of Medical Imaging, Jinling Hospital, Medical School of Nanjing University, Nanjing, China, .


      Department of Radiology and Radiological Science, Medical University of South Carolina, 25 Courtenay Drive, Charleston, SC, USA

      8 Heart and Vascular Center, Medical University of South Carolina, Charleston, SC.

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      Sample of concepts for which Uwe Joseph Joseph Schoepf is among the top experts in the world.
      Concept World rank
      p0001 image noise #1
      trocta patient management #1
      resultsgood #1
      fbp stent #1
      mace ccta #1
      ica dect #1
      cad races #1
      chest pasp #1
      ecv295 #1
      ventricular mass study #1
      ρ072 #1
      ffr uctffr #1
      remyjardin #1
      stenosis detection #1
      rightventriculardysfunction #1
      ctffrml ctffrml values #1
      atvs #1
      assisted reproducibility #1
      mld4 tag #1
      80 kvp 20 #1
      ctffr plaque markers #1
      cac vcf #1
      reductions volumes #1
      ccta aged #1
      feasibility ffrct #1
      intermediate lesions cffrml #1
      pvu datasets #1
      isr 50 #1
      discriminatory ccta #1
      nsclc pet study #1
      prospectively ecg #1
      ccta studies #1
      arm interpretation #1
      scoring cacs #1
      presence tid #1
      diagnostic performance uctffr #1
      dect spect #1
      extreme cyanosis #1
      auc ffrml #1
      females subgroups #1
      dualenergy pfe #1
      82 standard #1
      functional cadrads #1
      cohort agatston score #1
      3 patients cadrads #1
      interarterial racaos #1
      membranous nephropathy proteinuria #1
      dualenergyctangiography #1
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      Prominent publications by Uwe Joseph Joseph Schoepf

      KOL-Index: 17172

      OBJECTIVES: This study was conducted to investigate the influence of coronary artery calcium (CAC) score on the diagnostic performance of machine-learning-based coronary computed tomography (CT) angiography (cCTA)-derived fractional flow reserve (CT-FFR).

      BACKGROUND: CT-FFR is used reliably to detect lesion-specific ischemia. Novel CT-FFR algorithms using machine-learning artificial intelligence techniques perform fast and require less complex computational fluid dynamics. Yet, influence ...

      Known for Diagnostic Performance | Machine Learning | Coronary Calcium | Invasive Ffr | Cac Score
      KOL-Index: 16567

      PURPOSE: To investigate the image quality and radiation dose of low radiation dose CT coronary angiography (CTCA) using sinogram affirmed iterative reconstruction (SAFIRE) compared with standard dose CTCA using filtered back-projection (FBP) in obese patients.

      MATERIALS AND METHODS: Seventy-eight consecutive obese patients were randomized into two groups and scanned using a prospectively ECG-triggered step-and-shot (SAS) CTCA protocol on a dual-source CT scanner. Thirty-nine patients ...

      Known for Radiation Dose | Image Quality | Specificity Tomography | Iterative Reconstruction | Obese Patients
      KOL-Index: 16294

      OBJECTIVE: The aim of this study was to evaluate the impact of a noise-optimized virtual monochromatic imaging algorithm (VMI+) on image quality and diagnostic accuracy at dual-energy computed tomography angiography (CTA) of the lower extremity runoff.

      MATERIALS AND METHODS: This retrospective Health Insurance Portability and Accountability Act-compliant study was approved by the local institutional review board. We evaluated dual-energy CTA studies of the lower extremity runoff in 48 ...

      Known for Lower Extremity Runoff | Image Noise | F05 Vmi | Snr Cnr | Sensitivity Specificity
      KOL-Index: 16147

      ObjectivesComparison of coronary artery stent assessment with cardiac CT angiography (cCTA) using traditional filtered back projection (FBP) and sinogram affirmed iterative reconstruction (SAFIRE), in both full- and half-radiation dose image data.MethodsDual-source cCTA studies of 37 implanted stents were reconstructed at full- and half-radiation dose with FBP and SAFIRE. Half-dose data were based on projections from one DSCT detector. In-stent noise, signal-to-noise ratio (SNR), and ...

      Known for Image Quality | Radiation Dose | Coronary Artery Stents | Fbp Safire | Noise Snr
      KOL-Index: 16012

      OBJECTIVES: The purpose of this study was to assess image quality and radiation dose of lower extremity CT angiography (CTA) with 70 kVp, high pitch acquisition and sinogram-affirmed iterative reconstruction (SAFIRE).

      METHODS: Lower extremity CTAs were performed on 44 patients: 22 patients were examined using protocol A (120 kVp, pitch of 0.85 and 120 ml of contrast agent on a first-generation dual-source CT) (120 kVp group) and 22 patients were evaluated with protocol B (70 kVp, pitch ...

      Known for Image Quality | Radiation Dose | 70 Kvp | Lower Extremity | Iterative Reconstruction
      KOL-Index: 15755

      OBJECTIVES: This study sought to evaluate the image quality and diagnostic accuracy of noncontrast quiescent-interval single-shot (QISS) magnetic resonance angiography (MRA) versus iodine-contrast computed tomography angiography (CTA) in patients with peripheral artery disease (PAD), with invasive digital subtraction angiography (DSA) as the reference standard.

      BACKGROUND: QISS is a recently introduced noncontrast MRA technique. Although the diagnostic accuracy of QISS is reportedly ...

      Known for Qiss Mra | Lower Extremity | Digital Subtraction | Peripheral Artery Disease | Cta Dsa
      KOL-Index: 15749

      ObjectivesTo compare image quality and radiation dose of high-pitch dual-source computed tomography (DSCT), dual energy CT (DECT) and conventional single-source spiral CT (SCT) for pulmonary CT angiography (CTA) on a 128-slice CT system.MethodsPulmonary CTA was performed with five protocols: high-pitch DSCT (100 kV), high-pitch DSCT (120 kV), DECT (100/140 kV), SCT (100 kV), and SCT (120 kV). For each protocol, 30 sex, age, and body-mass-index (mean 25.3 kg/m2) matched patients were ...

      Known for Image Quality | Radiation Dose | 100 Kv | Dual Energy | Pulmonary Cta
      KOL-Index: 15087

      OBJECTIVE: The purpose of this article is to evaluate the feasibility of adenosine-stress dynamic myocardial perfusion imaging (MPI) with 128-MDCT dual-source CT for detecting myocardial ischemia in comparison with conventional catheter coronary angiography and nuclear MPI.

      SUBJECTS AND METHODS: Thirty patients (21 men and nine women; mean [± SD] age, 59.2 ± 7.6 years) prospectively underwent a combined stress CT perfusion and CT angiography (CTA) examination. Complete time-attenuation ...

      Known for Perfusion Imaging | Coronary Angiography | Dynamic Myocardial | Sensitivity Specificity | Positive Predictive
      KOL-Index: 14926

      OBJECTIVE: To determine whether coronary computed tomography angiography (CTA) should be performed in patients with any clinical probability of coronary artery disease (CAD), and whether the diagnostic performance differs between subgroups of patients.

      DESIGN: Prospectively designed meta-analysis of individual patient data from prospective diagnostic accuracy studies.

      DATA SOURCES: Medline, Embase, and Web of Science for published studies. Unpublished studies were identified via direct ...

      Known for Stable Chest Pain | Cta Patients | Computed Tomography | Diagnostic Performance | Coronary Angiography
      KOL-Index: 14830

      To evaluate the performance of dual-energy computed tomography (CT) for integrative imaging of the coronary artery morphology and the myocardial blood supply, 36 patients (15 women, mean age 57 +/- 11 years) with equivocal or incongruous single photon emission CT (SPECT) results were investigated by a single-contrast medium-enhanced, retrospectively electrocardiographic-gated dual-energy CT (DECT) scan with simultaneous acquisition of high and low x-ray spectra. Thirteen patients ...

      Known for Myocardial Blood Supply | Emission Computed | Single Photon | Ica Dect | Coronary Artery
      KOL-Index: 14618

      BACKGROUND: Despite the well-established requirement for radiation dose reduction there are few studies examining the potential for lower extremity CT angiography (CTA) at 70 kVp.

      PURPOSE: To compare the image quality and radiation dose of lower extremity CTA at 70 kVp using a dual-source CT system with an integrated circuit detector to similar studies at 120 kVp.

      MATERIAL AND METHODS: A total of 62 patients underwent lower extremity CTA. Thirty-one patients were examined at 70 kVp using ...

      Known for 70 Kvp | Image Quality | Radiation Dose | Lower Extremity | Computed Tomography
      KOL-Index: 14022

      OBJECTIVES: This study examined short-term cardiac catheterization rates and medication changes after cardiac imaging.

      BACKGROUND: Noninvasive cardiac imaging is widely used in coronary artery disease, but its effects on subsequent patient management are unclear.

      METHODS: We assessed the 90-day post-test rates of catheterization and medication changes in a prospective registry of 1,703 patients without a documented history of coronary artery disease and an intermediate to high likelihood ...

      Known for Coronary Artery | Cardiac Imaging | Myocardial Perfusion | Patient Management | Computed Tomography
      KOL-Index: 14015

      ObjectivesTo evaluate radiation dose, image quality, and optimal level of sinogram-affirmed iterative reconstruction (SAFIRE) of cerebral CT angiography (CTA) at 70 kVp.MethodsOne hundred patients were prospectively classified into two groups: Group A (n = 50), 70 kVp cerebral CTA with 5 levels of SAFIRE reconstruction (S1-S5); and Group B (n = 50), 120 kVp with filtered back projection (FBP) reconstruction. CT attenuation values, noise, signal-to-noise ratio (SNR) and contrast-to-noise ...

      Known for Image Quality | Radiation Dose | 70 Kvp | Iterative Reconstruction | Cerebral Angiography
      KOL-Index: 13947

      ObjectivesTo evaluate the feasibility, image quality and radiation dose of prospectively ECG-triggered high-pitch coronary CT angiography (CCTA) with 30 mL contrast agent at 70 kVp.MethodsFifty-eight patients with suspected coronary artery disease, a body mass index (BMI) of less than 25 kg/m2, sinus rhythm and a heart rate (HR) of less than 70 beats per minute (bpm) were prospectively enrolled in this study. Thirty mL of 370 mg I/mL iodinated contrast agent was administrated at a flow ...

      Known for 70 Kvp | Contrast Agent | Prospectively Ecg | Pitch Coronary | Radiation Dose
      KOL-Index: 13832

      ObjectivesTo evaluate the image quality, radiation dose and diagnostic accuracy of 80kVp, high-pitch CT pulmonary angiography (CTPA) with iterative reconstruction using 20 ml of contrast agent.MethodsOne hundred patients with suspected pulmonary embolism (PE) were randomly divided into two groups (n = 50 each; group A, 100 kVp, 1.2 pitch, 60 ml of contrast medium and filtered back projection algorithm; group B, 80 kVp, 2.2 pitch, 20 ml of contrast medium and sinogram affirmed iterative ...

      Known for 80 Kvp | Contrast Agent | Radiation Dose | Pulmonary Angiography | Computed Tomography

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      Medical University of South Carolina, Charleston, SC, USA | Department of Diagnostic Radiology, Jinling Hospital, Medical School of Nanjing University, 210002, Nanjing, Jiangsu, China | Division of Cardiovascular Imaging, Department of Radiology and

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