Assessment of anemia during CT pulmonary angiography.


OBJECTIVES:Anemia is associated with increased mortality in patients with acute symptomatic pulmonary embolism (PE). The purpose of this study was to evaluate the feasibility of Hounsfield unit (HU) measurements on the single unenhanced trigger slice of pulmonary CT angiography scans for diagnosis of anemia. MATERIAL AND METHODS:150 consecutive patients (median age 64 ± 16 years) with suspected PE underwent pulmonary CT angiography. Two radiologists, blinded to laboratory results, performed HU measurements in the single unenhanced trigger scan independently by region-based analysis (ROI). HU values from ascending and descending aorta and the calculated mean of both were correlated with serum hemoglobin levels. Inter- and intraobserver variability was determined for HU measurements, and ROC analysis was performed for diagnosis of anemia. Calculated linear models were used to assess formulas for estimation of hemoglobin levels from HU measurements. RESULTS:HU measurements revealed high intra- and interrater reliability (ICC>0.981 and ICC>0.965, respectively). Calculated mean HU values showed a strong correlation with serum hemoglobin levels (r=0.734), which allowed generation of different formulas for calculation of hemoglobin levels from HU measurements. ROC analyses confirmed a high sensitivity (80.4 for men; 91.3 for women) and specificity (84.0 for men; 84.9 for women) for diagnosing anemia. CONCLUSION:Diagnosis of anemia and quantification of hemoglobin levels upon a single unenhanced trigger scan of pulmonary CT angiography is feasible. We suggest disclosing the anemic state in the radiological report, independent of the presence of PE, since anemia carries increased risks of morbidity and mortality.


Eur J Radiol


Jung C,Groth M,Bley TA,Henes FO,Treszl A,Adam G,Bannas P




Has Abstract


2012-12-01 00:00:00














  • Regional changes in brain perfusion during brain maturation measured non-invasively with Arterial Spin Labeling MRI in neonates.

    abstract:PURPOSE:The purpose of this study was to evaluate if non-invasive Arterial Spin Labeling MR imaging can be used to assess changes in brain perfusion with age which reflect neonatal brain development. For this purpose regional perfusion values obtained with ASL MR imaging were evaluated as a function of postmenstrual ag...

    journal_title:European journal of radiology

    pub_type: 杂志文章


    authors: De Vis JB,Petersen ET,de Vries LS,Groenendaal F,Kersbergen KJ,Alderliesten T,Hendrikse J,Benders MJ

    更新日期:2013-03-01 00:00:00

  • Textural differences between renal cell carcinoma subtypes: Machine learning-based quantitative computed tomography texture analysis with independent external validation.

    abstract:OBJECTIVE:To develop externally validated, reproducible, and generalizable models for distinguishing three major subtypes of renal cell carcinomas (RCCs) using machine learning-based quantitative computed tomography (CT) texture analysis (qCT-TA). MATERIALS AND METHODS:Sixty-eight RCCs were included in this retrospect...

    journal_title:European journal of radiology

    pub_type: 杂志文章


    authors: Kocak B,Yardimci AH,Bektas CT,Turkcanoglu MH,Erdim C,Yucetas U,Koca SB,Kilickesmez O

    更新日期:2018-10-01 00:00:00

  • Multidetector helical CT in the evaluation of acute small bowel obstruction: comparison of non-enhanced (no oral, rectal or IV contrast) and IV enhanced CT.

    abstract:PURPOSE:To compare accuracy of non-enhanced CT (NECT) (no oral or IV contrast) and enhanced CT (ECT) (IV enhanced only) to diagnose small bowel obstruction and evaluate reviewer's experience impact. MATERIALS AND METHODS:Ninety-nine adult patients underwent 105 NECT and ECT (6 patients had 2 examinations) on a four-de...

    journal_title:European journal of radiology

    pub_type: 杂志文章


    authors: Atri M,McGregor C,McInnes M,Power N,Rahnavardi K,Law C,Kiss A

    更新日期:2009-07-01 00:00:00

  • MRI and CT features in two unusual cases of xanthogranulomatous pyelonephritis.

    abstract::Two unusual cases of xanthogranulomatous pyelonephritis studied by both magnetic resonance imaging and computed tomography, are presented. Extension of the disease depicted by both computed tomography and magnetic resonance imaging was compatible with the findings at surgery. Computed tomography seems to be sufficient...

    journal_title:European journal of radiology

    pub_type: 杂志文章


    authors: Anezinis P,Prassopoulos P,Daskalopoulos G,Mavromanolakis E,Gourtsoyiannis N,Cranidis A

    更新日期:1998-08-01 00:00:00

  • Panoramic zonography in evaluation of recurrent basal cell carcinoma of the face.

    abstract::Nine patients with recurrent, facial basal cell carcinoma were followed up both clinically and radiographically using a panoramic technique. A cylindrical image track was used for panoramic radiography. Five patients had bony destruction due to tumour re-occurrence, four patients had bony defects caused by surgery. Th...

    journal_title:European journal of radiology

    pub_type: 杂志文章


    authors: Hallikainen D,Tötterman S,Asko-Seljavaara S,Paukku P

    更新日期:1984-11-01 00:00:00

  • Impact of butylscopolamine on image quality of magnetic resonance cholangiopancreatography.

    abstract:PURPOSE:To assess the effect of parenteral butylscopolamine on magnetic resonance cholangiopancreatography (MRCP) image quality. MATERIALS AND METHODS:The 3D free-breathing respiratory-compensated MRCP images (mean acquisition time 7min) of 94 consecutive non-paired patients (47 with and 47 without 20mg intramuscular ...

    journal_title:European journal of radiology

    pub_type: 杂志文章


    authors: Venkatanarasimha N,Jenkins SJ,Yang N,Colak E,Kirpalani A

    更新日期:2013-04-01 00:00:00

  • Measurement of canine pancreatic perfusion using dynamic computed tomography: influence of input-output vessels on deconvolution and maximum slope methods.

    abstract:OBJECTIVE:We investigated whether the prerequisite of the maximum slope and deconvolution methods are satisfied in pancreatic perfusion CT and whether the measured parameters between these algorithms are correlated. METHODS:We examined nine beagles injected with iohexol (200 mgI kg(-1)) at 5.0 ml s(-1). The abdominal ...

    journal_title:European journal of radiology

    pub_type: 杂志文章


    authors: Kishimoto M,Tsuji Y,Katabami N,Shimizu J,Lee KJ,Iwasaki T,Miyake Y,Yazumi S,Chiba T,Yamada K

    更新日期:2011-01-01 00:00:00

  • Using a single abdominal computed tomography image to differentiate five contrast-enhancement phases: A machine-learning algorithm for radiomics-based precision medicine.

    abstract:PURPOSE:The clinical adoption of quantitative imaging biomarkers (radiomics) has established the need for high quality contrast-enhancement in medical images. We aimed to develop a machine-learning algorithm for Quality Control of Contrast-Enhancement on CT-scan (CECT-QC). METHOD:Multicenter data from four independent...

    journal_title:European journal of radiology

    pub_type: 杂志文章,多中心研究


    authors: Dercle L,Ma J,Xie C,Chen AP,Wang D,Luk L,Revel-Mouroz P,Otal P,Peron JM,Rousseau H,Lu L,Schwartz LH,Mokrane FZ,Zhao B

    更新日期:2020-04-01 00:00:00

  • Loco-regional staging accuracy in oesophageal cancer-How good are we in the modern era?

    abstract:INTRODUCTION:Accuracy of locoregional staging in patients with oesophageal cancer is critical in determining operability and the need for neoadjuvant treatment. Imaging technology has advanced significantly in recent years but it is not known whether this translates to improved staging accuracy. This study investigates...

    journal_title:European journal of radiology

    pub_type: 杂志文章


    authors: Bunting D,Bracey T,Fox B,Berrisford R,Wheatley T,Sanders G

    更新日期:2017-12-01 00:00:00

  • Magnetic resonance colonography with a limited bowel preparation and automated carbon dioxide insufflation in comparison to conventional colonoscopy: patient burden and preferences.

    abstract:OBJECTIVES:To evaluate patient burden and preferences for MR colonography with a limited bowel preparation and automated carbon dioxide insufflation in comparison to conventional colonoscopy. METHODS:Symptomatic patients were consecutively recruited to undergo MR colonography with automated carbon dioxide insufflation...

    journal_title:European journal of radiology

    pub_type: 杂志文章


    authors: van der Paardt MP,Boellaard TN,Zijta FM,Baak LC,Depla ACTM,Dekker E,Nederveen AJ,Bipat S,Stoker J

    更新日期:2015-01-01 00:00:00

  • Computed tomography with intravenous cholangiography contrast: a method for visualizing choledochal cysts.

    abstract::Our patient presented with a typical case history and typical symptoms. She also belongs to a group with a high incidence of the disorder. The diagnosis was suspected at ultrasonography, which accurately detected the presence and location of a cyst, but could not establish its origin. Computed tomography is a better d...

    journal_title:European journal of radiology

    pub_type: 杂志文章


    authors: Höglund M,Muren C,Boijsen MW

    更新日期:1990-03-01 00:00:00

  • Imaging appearances and management of isolated spontaneous dissection of the superior mesenteric artery.

    abstract:OBJECTIVE:The objective of our study was to report the clinical and imaging features of isolated dissection of the superior mesenteric artery (SMA) and describe our imaging classification of this disease entity. SUBJECTS AND METHODS:We retrospectively analyzed clinical presentation, imaging appearances and outcome of ...

    journal_title:European journal of radiology

    pub_type: 杂志文章


    authors: Sakamoto I,Ogawa Y,Sueyoshi E,Fukui K,Murakami T,Uetani M

    更新日期:2007-10-01 00:00:00

  • T2 mapping and dGEMRIC after autologous chondrocyte implantation with a fibrin-based scaffold in the knee: preliminary results.

    abstract:OBJECTIVE:To assess repair tissue (RT) after the implantation of BioCartII, an autologous chondrocyte implantation (ACI) technique with a fibrin-hyaluronan polymer as scaffold. T2 mapping and delayed Gadolinium Enhanced Magnetic Resonance Imaging of Cartilage (dGEMRIC) were used to gain first data on the biochemical pr...

    journal_title:European journal of radiology

    pub_type: 杂志文章


    authors: Domayer SE,Welsch GH,Nehrer S,Chiari C,Dorotka R,Szomolanyi P,Mamisch TC,Yayon A,Trattnig S

    更新日期:2010-03-01 00:00:00

  • MR imaging of pancreatic diseases.

    abstract::This article presents current MR imaging techniques for the pancreas, and review a spectrum of MR imaging features of various pancreatic diseases. These include: 1) congenital anomalies such as anomalous union of pancreatobiliary ducts, divisum, and annular pancreas, 2) inflammatory diseases, including acute or chroni...

    journal_title:European journal of radiology

    pub_type: 杂志文章,评审


    authors: Ito K,Koike S,Matsunaga N

    更新日期:2001-05-01 00:00:00

  • Interobserver variation in the detection of pulmonary venous hypertension in chest radiographs.

    abstract::A total of 171 sets of chest radiographs chosen randomly were reviewed independently by two residents in their second year of training, and two experienced radiologists. The degree of interobserver agreement in an overall assessment of pulmonary venous hypertension and in the assessment of five signs, indicative of pu...

    journal_title:European journal of radiology

    pub_type: 杂志文章


    authors: Nørgaard H,Gjørup T,Brems-Dalgaard E,Hartelius H,Brun B

    更新日期:1990-11-01 00:00:00

  • Differentiation of osteoporotic and neoplastic vertebral fractures by chemical shift {in-phase and out-of phase} MR imaging.

    abstract:OBJECTIVE:The objective of this study was to establish the cut-off value of the signal intensity drop on chemical shift magnetic resonance imaging (MRI) with appropriate sensitivity and specificity to differentiate osteoporotic from neoplastic wedging of the spine. PATIENTS AND METHODS:All patients with wedging of ver...

    journal_title:European journal of radiology

    pub_type: 杂志文章


    authors: Ragab Y,Emad Y,Gheita T,Mansour M,Abou-Zeid A,Ferrari S,Rasker JJ

    更新日期:2009-10-01 00:00:00

  • Brain metabolite changes in alcoholism: localized proton magnetic resonance spectroscopy study of the occipital lobe.

    abstract::Chronic alcoholism is associated with altered brain metabolism, morphology and cognitive abilities. Besides deficits in higher order cognitive functions, alcoholics also show a deficit in the processing of basic sensory information viz. visual stimulation. To assess the metabolic changes associated with this deficit, ...

    journal_title:European journal of radiology

    pub_type: 杂志文章


    authors: Modi S,Bhattacharya M,Kumar P,Deshpande SN,Tripathi RP,Khushu S

    更新日期:2011-07-01 00:00:00

  • Structured report for chest high-resolution computed tomography in patients with connective tissue disease: Impact on the report quality as perceived by referring clinicians.

    abstract:RATIONALE AND OBJECTIVES:To evaluate the impact on perceived report quality of referring rheumatologists for a chest high-resolution computed tomography (HRCT) structured report (SR) template for patients with connective tissue disease (CTD), compared to the traditional narrative report (NR). MATERIALS AND METHODS:We ...

    journal_title:European journal of radiology

    pub_type: 杂志文章


    authors: Cereser L,Marchesini F,Di Poi E,Sacco S,De Marchi G,Linda A,Como G,Zuiani C,Girometti R

    更新日期:2020-10-01 00:00:00

  • 3D cone-beam CT of the ankle using a novel twin robotic X-ray system: Assessment of image quality and radiation dose.

    abstract:PURPOSE:To evaluate image quality (IQ) and radiation dose in cone-beam computed tomography (CBCT) of the ankle using a novel twin robotic X-ray system. METHOD:We examined 16 cadaveric ankles with standard-dose (FD) and low-dose (LD) protocols using the new system's CBCT mode. For comparison, we performed multi-slice C...

    journal_title:European journal of radiology

    pub_type: 杂志文章,随机对照试验


    authors: Grunz JP,Kunz AS,Gietzen CH,Weng AM,Veyhl-Wichmann M,Ergün S,Schmitt R,Bley TA,Gassenmaier T

    更新日期:2019-10-01 00:00:00

  • Sonography-guided percutaneous microwave ablation of intrahepatic primary cholangiocarcinoma.

    abstract:OBJECTIVE:To evaluate the efficacy and safety of sonography-guided percutaneous microwave ablation of intrahepatic primary cholangiocarcinoma. MATERIALS AND METHODS:From May 2006 to March 2010, 15 patients (11 men, 4 women; mean age, 57.4 years) with 24 histologically proven intrahepatic primary cholangiocarcinoma les...

    journal_title:European journal of radiology

    pub_type: 杂志文章


    authors: Yu MA,Liang P,Yu XL,Cheng ZG,Han ZY,Liu FY,Yu J

    更新日期:2011-11-01 00:00:00

  • Pulmonary MR angiography and perfusion imaging-A review of methods and applications.

    abstract::The pulmonary vasculature and its role in perfusion and gas exchange is an important consideration in many conditions of the lung and heart. Currently the mainstay of imaging of the vasculature and perfusion of the lungs lies with CT and nuclear medicine perfusion scans, both of which require ionizing radiation exposu...

    journal_title:European journal of radiology

    pub_type: 杂志文章,评审


    authors: Johns CS,Swift AJ,Hughes PJC,Ohno Y,Schiebler M,Wild JM

    更新日期:2017-01-01 00:00:00

  • Effects of reconstruction technique on the quality of abdominal CT angiography: A comparison between forward projected model-based iterative reconstruction solution (FIRST) and conventional reconstruction methods.

    abstract:PURPOSE:This study aimed to compare the quality of abdominal CT angiography (CTA) images obtained using conventional reconstruction algorithms with those obtained using a novel iterative algorithm (forward projected model-based iterative reconstruction solution, FIRST) for evaluating arteries in the abdomen. MATERIALS...

    journal_title:European journal of radiology

    pub_type: 杂志文章


    authors: Wu R,Hori M,Onishi H,Nakamoto A,Fukui H,Ota T,Nishida T,Enchi Y,Satoh K,Tomiyama N

    更新日期:2018-09-01 00:00:00

  • CT-guided aspiration in potentially infected total hip replacements complicated by heterotopic bone.

    abstract::Aspiration of the hip joint in the setting of a potentially infected total hip replacement is occasionally unsuccessful under fluoroscopic guidance because of periarticular heterotopic bone. Of 136 consecutive patients with total hip replacements who were referred to the radiology department for hip aspiration because...

    journal_title:European journal of radiology

    pub_type: 杂志文章


    authors: Chew FS,Brown JH,Palmer WE,Kattapuram SV

    更新日期:1995-05-01 00:00:00

  • Is magnetic resonance imaging of hepatic hemangioma any different in liver fibrosis and cirrhosis compared to normal liver?

    abstract:PURPOSE:To compare qualitative and quantitative magnetic resonance (MR) imaging characteristics of hepatic hemangiomas in patients with normal, fibrotic and cirrhotic livers. MATERIALS AND METHODS:Retrospective, institutional review board approved study (waiver of informed consent). Eighty-nine consecutive patients wi...

    journal_title:European journal of radiology

    pub_type: 杂志文章


    authors: Duran R,Ronot M,Di Renzo S,Gregoli B,Van Beers BE,Vilgrain V

    更新日期:2015-05-01 00:00:00

  • Prognostic value of pre-treatment DCE-MRI parameters in predicting disease free and overall survival for breast cancer patients undergoing neoadjuvant chemotherapy.

    abstract::The purpose of this study was to investigate whether dynamic contrast enhanced MRI (DCE-MRI) data, both pharmacokinetic and empirical, can predict, prior to neoadjuvant chemotherapy, which patients are likely to have a shorter disease free survival (DFS) and overall survival (OS) interval following surgery. Traditiona...

    journal_title:European journal of radiology

    pub_type: 临床试验,杂志文章


    authors: Pickles MD,Manton DJ,Lowry M,Turnbull LW

    更新日期:2009-09-01 00:00:00

  • Permeability to macromolecular contrast media quantified by dynamic MRI correlates with tumor tissue assays of vascular endothelial growth factor (VEGF).

    abstract:PURPOSE:To correlate dynamic MRI assays of macromolecular endothelial permeability with microscopic area-density measurements of vascular endothelial growth factor (VEGF) in tumors. METHODS AND MATERIAL:This study compared tumor xenografts from two different human cancer cell lines, MDA-MB-231 tumors (n=5), and MDA-MB...

    journal_title:European journal of radiology

    pub_type: 杂志文章


    authors: Cyran CC,Sennino B,Fu Y,Rogut V,Shames DM,Chaopathomkul B,Wendland MF,McDonald DM,Brasch RC,Raatschen HJ

    更新日期:2012-05-01 00:00:00

  • Multiple, thin-walled cysts are one of the HRCT features of airspace enlargement with fibrosis.

    abstract:PURPOSE:Airspace enlargement with fibrosis (AEF) has been identified pathologically as a smoking related change. We sought to identify the HRCT findings of AEF and search for distinguishing features from honeycombing. MATERIALS AND METHODS:50 patients (47 males; mean age 69) were evaluated. All had undergone lobectomy...

    journal_title:European journal of radiology

    pub_type: 杂志文章


    authors: Watanabe Y,Kawabata Y,Kanauchi T,Hoshi E,Kurashima K,Koyama S,Colby TV

    更新日期:2015-05-01 00:00:00

  • Magnetic resonance (MR) imaging of prostatic tumours, a comparison with X-ray CT and transrectal sonography (TRS).

    abstract::A total of 7 healthy volunteers and 31 patients have been examined clinically, by MRI, TRS, and biopsy. In those patients with established carcinoma, a CT examination was also performed. For the MRI study, a superconducting MR 2000 imager (Picker International) operated at 0.15 T was used with multiplanar SE and IR se...

    journal_title:European journal of radiology

    pub_type: 杂志文章


    authors: Bockisch A,Jäger N,Biersack HJ,Vahlensieck W,Hünermann B,Schmitz HG,Knopp R,Christ F,Winkler C

    更新日期:1988-02-01 00:00:00

  • Infarction of the corpus callosum: computed tomography and magnetic resonance imaging.

    abstract:OBJECTIVE:To describe the computed tomography (CT) and magnetic resonance (MR) features of corpus callosum (CC) infarctions. METHODS:We reviewed retrospectively 352 consecutive cranial CT and MR scans showing cerebral infarcts. Involvement of the CC was identified in 28 patients. RESULTS:Infarctions of the CC were di...

    journal_title:European journal of radiology

    pub_type: 杂志文章


    authors: Chrysikopoulos H,Andreou J,Roussakis A,Pappas J

    更新日期:1997-07-01 00:00:00

  • Overview of the radiology of juvenile idiopathic arthritis (JIA).

    abstract::Plain films remain the basic tool for diagnosis and follow-up evaluation of juvenile idiopathic arthritis (JIA). In this paper, we review the new classification of JIA: systemic arthritis. oligoarthritis (persistent), oligoarthritis (extended), polyarticular arthritis (rheumatoid factor negative), polyarticular arthri...

    journal_title:European journal of radiology

    pub_type: 杂志文章,评审


    authors: Cohen PA,Job-Deslandre CH,Lalande G,Adamsbaum C

    更新日期:2000-02-01 00:00:00