当前位置： SCI文献检索 > ACADEMIC RADIOLOGY期刊下所有文献 > Clinical evaluation of wavelet-compressed digitized screen-film mammography.

Clinical evaluation of wavelet-compressed digitized screen-film mammography.

Abstract：

RATIONALE AND OBJECTIVES:The authors compared diagnostic accuracy and callback rates with conventional screen-film mammograms and wavelet-compressed digitized images. MATERIALS AND METHODS:Sixty sets of mammograms (four views per case) were digitized at a spatial resolution of 100 microm. The images were wavelet compressed to a mean compression ratio of 8:1 and reviewed by three mammographers. Five regions were evaluated in each breast. Suspicion of malignancy was graded on a scale of 0% to 100%, and receiver operating characteristic (ROC) analysis was performed. Callback rates were calculated by using the American College of Radiology's Breast Imaging Reporting and Data System lexicon scale. RESULTS:The mean diagnostic accuracy with compressed and conventional images was 0.832 and 0.860, respectively. The upper 95% confidence bound for the difference in ROC areas was 0.061. The mean false-positive rate at a fixed sensitivity of 0.90 was 0.041 for compressed images and 0.059 for conventional images. The mean callback rates for normal, benign, and malignant regions were 0.023, 0.305, and 0.677, respectively, for compressed images and 0.036, 0.447, and 0.750, respectively, for conventional images. The upper 95% confidence bound for the (absolute) differences in callback rates was 0.012 for normal regions, 0.163 for benign regions, and 0.138 for malignant regions. CONCLUSION:Diagnostic accuracies were equivalent for both compressed and conventional images. The mean false-positive rate at fixed sensitivity was much better with the compressed images. However, the callback rates for malignant lesions were lower when the compressed images were used.

journal_name

Acad Radiol

journal_title

Academic radiology

authors

Powell KA,Mallasch PG,Obuchowski NA,Kerczewski RJ,Ganobcik SN,Cardenosa G,Chilcote W

doi

10.1016/s1076-6332(00)80004-5

keywords:

subject

Has Abstract

pub_date

2000-05-01 00:00:00

pages

311-6

issue

5

eissn

1076-6332

issn

1878-4046

journal_volume

7

pub_type

杂志文章

相关文献

ACADEMIC RADIOLOGY文献大全
  • Multivariate Analysis of Radiologists' Usage of Phrases that Convey Diagnostic Certainty.

    abstract：RATIONALE AND OBJECTIVES:To quantify the use of Diagnostic Certainty Phrases (DCP) in radiology reports, including DCPs with good agreement (including "diagnostic of," "unlikely" and "represents") in connoting degree of certainty between providers based on previous studies; and to assess whether modality, presence of a...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2018.10.017

    authors： Lacson R,Odigie E,Wang A,Kapoor N,Shinagare A,Boland G,Khorasani R

    更新日期：2019-09-01 00:00:00

  • Optimal contrast agents for vascular imaging on computed tomography: iodixanol versus iohexol.

    abstract：RATIONALE AND OBJECTIVES:Dimeric nonionic iodinated contrast has a lower osmolality than monomeric nonionic iodinated contrast but is available at lower iodine concentrations. Less dilution of intravascular fluid by influx from the extravascular space is proposed to occur with decreasing osmolality. The purpose of this...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2005.01.015

    authors： Pannu HK,Thompson RE,Phelps J,Magee CA,Fishman EK

    更新日期：2005-05-01 00:00:00

  • Optimizing image contrast display improves quantitative stenosis measurement in heavily calcified coronary arterial segments on coronary CT angiography: A proof-of-concept and comparison to quantitative invasive coronary angiography.

    abstract：RATIONALE AND OBJECTIVES:Blooming artifact from calcified plaques often renders measurement of stenosis impossible on coronary computed tomographic angiography (CTA). We sought to evaluate the impact of modifying window level on reducing blooming artifact, and its impact on stenosis quantification. MATERIALS AND METHO...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2014.02.016

    authors： Shmilovich H,Cheng VY,Dey D,Rajani R,Nakazato R,Otaki Y,Nakanishi R,Vashistha V,Min JK,Berman DS

    更新日期：2014-06-01 00:00:00

  • Innovation in diagnostic imaging services: assessing the potential for value-based reimbursement.

    abstract：:Innovation in the field of diagnostic imaging is based primarily on the availability of new and improved equipment that opens the door for new clinical applications. Payments for these imaging procedures are subject to complex Medicare price control schemes, affecting incentives for appropriate use and innovation. Ach...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2011.04.007

    authors： Garrison LP Jr,Bresnahan BW,Higashi MK,Hollingworth W,Jarvik JG

    更新日期：2011-09-01 00:00:00

  • Grand rounds and a visiting professorship program in a department of radiology: how we do it.

    abstract：:We discuss the benefits of maintaining an active, rigorous, and highly structured grand rounds (GR) program in an academic radiology department. These benefits include education for faculty (continuing medical education), fellows, and residents and a venue for building collaboration and camaraderie within the departme...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2012.08.003

    authors： Tridandapani S,Mullins ME,Meltzer CC

    更新日期：2012-11-01 00:00:00

  • Seventy-Peak Kilovoltage High-Pitch Thoracic Aortic CT Angiography without ECG Gating: Evaluation of Image Quality and Radiation Dose.

    abstract：RATIONALE AND OBJECTIVES:To assess the feasibility of 70-kVp high-pitch non-ECG-gated thoracic aortic computed tomography angiography (CTA) with 40-mL contrast agent compared to 100-kVp standard-pitch CTA with 60-mL contrast agent. MATERIALS AND METHODS:Sixty-seven patients (51 men and 16 women; mean age, 55 ± 14 year...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2015.03.007

    authors： Zhang LJ,Zhao YE,Schoepf UJ,Mangold S,Felmly LM,Li X,Tang CX,Zhou CS,Qi L,Lu GM

    更新日期：2015-07-01 00:00:00

  • A comparison of internally water-perfused and cryogenically cooled monopolar and bipolar radiofrequency applicators in ex vivo liver samples.

    abstract：RATIONALE AND OBJECTIVES:To evaluate the ex vivo ablation zones created in hepatic tissue using monopolar and bipolar gas- and water-cooled radiofrequency (RF) applicators. MATERIALS AND METHODS:RF ablations were performed on ex vivo bovine liver tissue using closed circuit water-cooled and closed circuit cryogenicall...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2014.02.004

    authors： Rempp H,Mezger D,Voigtlaender M,Scharpf M,Hoffmann R,Pereira PL,Enderle MD,Claussen CD,Clasen S

    更新日期：2014-05-01 00:00:00

  • Intraindividual comparison of two methods of volumetric breast composition assessment.

    abstract：RATIONALE AND OBJECTIVES:To compare the results of two software-based methods, Quantra and Volpara, for volumetric breast composition assessment. MATERIALS AND METHODS:Four hundred forty-five normal, bilateral, two-view, digital mammograms were included. Breast volume (BV), fibroglandular tissue volume (FTV), and perc...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2014.12.003

    authors： Schmachtenberg C,Hammann-Kloss S,Bick U,Engelken F

    更新日期：2015-04-01 00:00:00

  • Lower limb vascular disease in diabetic patients: a study with calf compression contrast-enhanced magnetic resonance angiography at 3.0 Tesla.

    abstract：RATIONALE AND OBJECTIVES:To retrospectively analyze the significance of 3.0-T contrast-enhanced (CE) magnetic resonance angiography (MRA) with calf compression in the lower limbs of diabetic patients with peripheral vascular disease. MATERIALS AND METHODS:Sixty-one type 2 diabetes patients underwent both MRA and digit...

    journal_title：Academic radiology

    pub_type： 杂志文章,随机对照试验

    doi：10.1016/j.acra.2011.01.013

    authors： Li J,Zhao JG,Li MH

    更新日期：2011-06-01 00:00:00

  • Does biopsy, aspiration or six-month follow-up of a false-positive mammogram reduce future screening or have large psychosocial effects?

    abstract：RATIONALE AND OBJECTIVES:To determine the differences in the psychosocial effects and future mammography screening behavior between women who had an abnormal mammogram followed either by percutaneous or open surgical breast biopsy or cyst aspiration, or by short-term follow-up mammography to provide insight to radiolog...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/s1076-6332(03)00382-9

    authors： Currence BV,Pisano ED,Earp JA,Moore A,Chiu YF,Brown ME,Kurgat KL

    更新日期：2003-11-01 00:00:00

  • Local toxicity of hepatic arterial infusion of hexokinase II inhibitor, 3-bromopyruvate: In vivo investigation in normal rabbit model.

    abstract：RATIONALE AND OBJECTIVES:3-Bromopyruvate (3-BrPA), an hexokinase II inhibitor, is known to have high necrotic rate in hyperglycolytic liver tumor models without apparent damage to the normal liver parenchyma. The toxicity of intra-arterial delivery of 3-BrPA in various concentrations has not been specifically investiga...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2006.09.059

    authors： Chang JM,Chung JW,Jae HJ,Eh H,Son KR,Lee KC,Park JH

    更新日期：2007-01-01 00:00:00

  • Corona Virus International Public Health Emergencies: Implications for Radiology Management.

    abstract：:The outbreak of 2019 novel coronavirus (2019-nCoV) pneumonia was reported in Wuhan, Hubei Province, China in December 2019 and has spread internationally. This article discusses how radiology departments can most effectively respond to this public health emergency. ...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2020.02.003

    authors： Zhang HW,Yu J,Xu HJ,Lei Y,Pu ZH,Dai WC,Lin F,Wang YL,Wu XL,Liu LH,Li M,Mo YQ,Zhang H,Luo SP,Chen H,Lyu GW,Zhou ZG,Liu WM,Liu XL,Song HY,Chen FZ,Zeng L,Zhong H,Guo TT,Hu YQ,Yang XX,Liu PN,Li DF

    更新日期：2020-04-01 00:00:00

  • Computer-aided detection of clustered microcalcifications in digitized mammograms.

    abstract：RATIONALE AND OBJECTIVES:We investigated a computer-aided detection (CAD) scheme for clustered microcalcifications in digitized mammograms. METHODS:A multistage CAD scheme was developed and tested. To increase sensitivity, the scheme uses a Gaussian band-pass filter and nonlinear threshold. A multistage local minimum ...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/s1076-6332(05)80431-3

    authors： Zheng B,Chang YH,Staiger M,Good W,Gur D

    更新日期：1995-08-01 00:00:00

  • Bone Marrow Lipid Profiles from Peripheral Skeleton as Potential Biomarkers for Osteoporosis: A 1H-MR Spectroscopy Study.

    abstract：RATIONALE AND OBJECTIVES:To characterize the lipidic profile of bone marrow in the calcaneus and femoral neck of healthy, osteopenic, and osteoporotic women, by using magnetic resonance spectroscopy (MRS) at 3T. The final goal was to identify specific metabolites with the potential ability to discriminate between healt...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2015.11.009

    authors： Di Pietro G,Capuani S,Manenti G,Vinicola V,Fusco A,Baldi J,Scimeca M,Hagberg G,Bozzali M,Simonetti G,Tarantino U

    更新日期：2016-03-01 00:00:00

  • Stable polymeric micelles: lymphangiographic contrast media for gamma scintigraphy and magnetic resonance imaging.

    abstract：RATIONALE AND OBJECTIVES:Amphiphilic biocompatible polyoxyethylene (PEO)-based polymers form particles (micelles) that are 10-50 nm in diameter. In the current research, we successfully incorporated amphiphilic indium-111 (111In) and gadolinium chelates into these particles and used them as particulate contrast media i...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/s1076-6332(96)80448-x

    authors： Trubetskoy VS,Frank-Kamenetsky MD,Whiteman KR,Wolf GL,Torchilin VP

    更新日期：1996-03-01 00:00:00

  • Diffraction enhanced imaging of a rat model of gastric acid aspiration pneumonitis.

    abstract：RATIONALE AND OBJECTIVES:Diffraction-enhanced imaging (DEI) is a type of phase contrast x-ray imaging that has improved image contrast at a lower dose than conventional radiography for many imaging applications, but no studies have been done to determine if DEI might be useful for diagnosing lung injury. The goals of t...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2011.08.005

    authors： Connor DM,Zhong Z,Foda HD,Wiebe S,Parham CA,Dilmanian FA,Cole EB,Pisano ED

    更新日期：2011-12-01 00:00:00

  • Triple rule-out CT in patients with suspicion of acute pulmonary embolism: findings and accuracy.

    abstract：RATIONALE AND OBJECTIVES:The aim of this study was to prospectively investigate the diagnostic value of triple rule-out computed tomography (CT) in patients suspected of having acute pulmonary embolism (PE). MATERIALS AND METHODS:A total of 125 patients with suspicion of PE, of whom 14 patients had the additional clin...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2009.01.014

    authors： Schertler T,Frauenfelder T,Stolzmann P,Scheffel H,Desbiolles L,Marincek B,Kaplan V,Kucher N,Alkadhi H

    更新日期：2009-06-01 00:00:00

  • Virtual Read-Out: Radiology Education for the 21st Century During the COVID-19 Pandemic.

    abstract：:Technologic advances have resulted in the expansion of web-based conferencing and education. While historically video-conferencing has been used for didactic educational sessions, we present its novel use in virtual radiology read-outs in the face of the COVID-19 pandemic. Knowledge of key aspects of set-up, implement...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2020.04.028

    authors： Li CH,Rajamohan AG,Acharya PT,Liu CJ,Patel V,Go JL,Kim PE,Acharya J

    更新日期：2020-06-01 00:00:00

  • How can a massive training artificial neural network (MTANN) be trained with a small number of cases in the distinction between nodules and vessels in thoracic CT?

    abstract：RATIONALE AND OBJECTIVES:To demonstrate that a massive training artificial neural network (MTANN) can be adequately trained with a small number of cases in the distinction between nodules and vessels (non-nodules) in thoracic computed tomography (CT) images. MATERIALS AND METHODS:An MTANN is a trainable, highly nonlin...

    journal_title：Academic radiology

    pub_type： 临床试验,杂志文章

    doi：10.1016/j.acra.2005.06.017

    authors： Suzuki K,Doi K

    更新日期：2005-10-01 00:00:00

  • Stereotactic and sonographic large-core biopsy of nonpalpable breast lesions: results of the Radiologic Diagnostic Oncology Group V study.

    abstract：RATIONALE AND OBJECTIVES:To determine the diagnostic accuracy of stereotactically and sonographically guided core biopsy (CB) for the diagnosis of nonpalpable breast lesions. MATERIALS AND METHODS:Twenty-two institutions enrolled 2,403 women who underwent imaging-guided fine needle aspiration followed by imaging-guide...

    journal_title：Academic radiology

    pub_type： 临床试验,杂志文章,多中心研究,随机对照试验

    doi：10.1016/s1076-6332(03)00510-5

    authors： Fajardo LL,Pisano ED,Caudry DJ,Gatsonis CA,Berg WA,Connolly J,Schnitt S,Page DL,McNeil BJ,Radiologist Investigators of the Radiologic Diagnostic Oncology Group V.

    更新日期：2004-03-01 00:00:00

  • Performance of dual-energy CT with tin filter technology for the discrimination of renal cysts and enhancing masses.

    abstract：RATIONALE AND OBJECTIVES:To assess the performance of dual-energy computed tomography (DECT) equipped with the new tin filter technology to classify phantom renal lesions as cysts or enhancing masses. MATERIALS AND METHODS:Forty spherical lesion proxies ranging in diameter from 6 to 27 mm were filled with either disti...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2009.11.007

    authors： Leschka S,Stolzmann P,Baumüller S,Scheffel H,Desbiolles L,Schmid B,Marincek B,Alkadhi H

    更新日期：2010-04-01 00:00:00

  • Management of Splenic Trauma in Contemporary Clinical Practice: A National Trauma Data Bank Study.

    abstract：BACKGROUND:To evaluate the utilization and efficacy of various treatments for management of adult patients with splenic trauma, highlighting the evolving role of splenic artery embolization. MATERIALS AND METHODS:The National Trauma Data Bank (NTDB) was queried for patients who sustained splenic trauma between 2007 an...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2020.11.010

    authors： Chahine AH,Gilyard S,Hanna TN,Fan S,Risk B,Johnson JO,Duszak R Jr,Newsome J,Xing M,Kokabi N

    更新日期：2020-12-04 00:00:00

  • The effects of magnetically labeled rat spleen-originated endothelial progenitor cells on growth of glioma in vivo an experimental study.

    abstract：RATIONALE AND OBJECTIVES:The aim of this study was to investigate the effects of exogenous endothelial progenitor cells (EPCs) on the growth and invasiveness of glioma in vivo to provide an experimental basis for the value and safety of using magnetically labeled EPCs as target vectors to detect early infiltration of g...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2011.02.017

    authors： Fang J,Wang S,Chen J,Zhang Y,Zhang B,Liang H,Zhang W

    更新日期：2011-07-01 00:00:00

  • Anatomic Eponyms in Neuroradiology: Brain, Cerebral Vasculature, and Calvarium.

    abstract：:Medical eponyms are ubiquitous, numerous, and at times controversial. They are often useful for succinctly conveying complex concepts, and familiarity with eponyms is important for proper usage and appropriate communication. In this historical review, we identify 18 anatomic eponyms used to describe structures of the ...

    journal_title：Academic radiology

    pub_type： 传,历史文章,杂志文章,评审

    doi：10.1016/j.acra.2016.01.008

    authors： Bunch PM,Zamani AA

    更新日期：2016-06-01 00:00:00

  • Added Value of Bone Subtraction in Dual-energy Digital Radiography in the Detection of Pneumothorax: Impact of Reader Expertise and Medical Specialty.

    abstract：RATIONALE AND OBJECTIVES:This study aimed to determine the value of dual-energy thoracic radiography in the diagnosis of pneumothorax considering the reader's experience. MATERIALS AND METHODS:Forty patients with a suspected pneumothorax, imaged with dual-energy chest radiographs, were divided into two groups: those w...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2017.06.015

    authors： Urbaneja A,Dodin G,Hossu G,Bakour O,Kechidi R,Gondim Teixeira P,Blum A

    更新日期：2018-01-01 00:00:00

  • High-resolution black-blood MRI of the carotid vessel wall using phased-array coils at 1.5 and 3 Tesla.

    abstract：RATIONALE AND OBJECTIVES:The aim of this report is to investigate the magnetic field dependence of the signal-to-noise ratio (SNR) for carotid vessel wall magnetic resonance imaging using phased-array (PA) surface coils by comparing images obtained at 1.5 and 3 Tesla (T) and determine the extent to which the improved S...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2005.08.009

    authors： Anumula S,Song HK,Wright AC,Wehrli FW

    更新日期：2005-12-01 00:00:00

  • How Well Does Dual-energy CT with Fast Kilovoltage Switching Quantify CT Number and Iodine and Calcium Concentrations?

    abstract：RATIONALE AND OBJECTIVES:Because it is imperative for understanding the performance of dual-energy computed tomography scanner to determine clinical diagnosis, we aimed to assess the accuracy of quantitative measurements using dual-energy computed tomography with fast kilovoltage switching. MATERIALS AND METHODS:Quant...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2017.11.002

    authors： Ohira S,Karino T,Ueda Y,Nitta Y,Kanayama N,Miyazaki M,Koizumi M,Teshima T

    更新日期：2018-04-01 00:00:00

  • Validation of the international labour office digitized standard images for recognition and classification of radiographs of pneumoconiosis.

    abstract：RATIONALE AND OBJECTIVES:Chest radiographs are recommended for prevention and detection of pneumoconiosis. In 2011, the International Labour Office (ILO) released a revision of the International Classification of Radiographs of Pneumoconioses that included a digitized standard images set. The present study compared res...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2013.11.019

    authors： Halldin CN,Petsonk EL,Laney AS

    更新日期：2014-03-01 00:00:00

  • In vivo proton magnetic resonance spectroscopy of hepatic ischemia/reperfusion injury in an experimental model.

    abstract：RATIONALE AND OBJECTIVES:Hepatic ischemia/reperfusion injury (IRI) occurs during certain hepatobiliary surgeries, hemorrhagic shock, and veno-occlusive disease. Biochemical changes caused by hepatic IRI lead to hepatocellular remodeling, including cellular regeneration or irreversible apoptosis. This study aims to char...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2010.09.019

    authors： Chow AM,Chan KW,Fan SJ,Yang J,Cheung JS,Khong PL,Wu EX

    更新日期：2011-02-01 00:00:00

  • Prediction accuracy of a sample-size estimation method for ROC studies.

    abstract：RATIONALE AND OBJECTIVES:Sample-size estimation is an important consideration when planning a receiver operating characteristic (ROC) study. The aim of this work was to assess the prediction accuracy of a sample-size estimation method using the Monte Carlo simulation method. MATERIALS AND METHODS:Two ROC ratings simul...

    journal_title：Academic radiology

    pub_type： 杂志文章

    doi：10.1016/j.acra.2010.01.007

    authors： Chakraborty DP

    更新日期：2010-05-01 00:00:00