Unusual artifact with mammography film.

abstract：:To analyze the effectiveness and accuracy of the diagnostic process from screening mammography to final diagnosis at pathologic examination, the authors conducted a prospective study of 277 consecutive patients who underwent 291 mammographically directed biopsies of nonpalpable lesions. Of the 170 lesions that demonst...

journal_title：Radiology

authors： Stein MA,Karlan MS

更新日期：1991-04-01 00:00:00

abstract：:Varicocele is a common and treatable cause of male subfertility. The authors describe a new technique for varicocele detection using radionuclide blood-pool imaging of the scrotum. Of 83 patients studied, 29 had a clinically palpable varicocele of various sizes, and 26 of them were demonstrated by this technique. Two ...

journal_title：Radiology

authors： Freund J,Handelsman DJ,Bautovich GJ,Conway AJ,Morris JG

更新日期：1980-10-01 00:00:00

abstract：:Background Available methods to quantify regional dynamic thoracic function in thoracic insufficiency syndrome (TIS) are limited. Purpose To evaluate the use of quantitative dynamic MRI to depict changes in regional dynamic thoracic function before and after surgical correction of TIS. Materials and Methods Images fro...

journal_title：Radiology

authors： Tong Y,Udupa JK,McDonough JM,Wileyto EP,Capraro A,Wu C,Ho S,Galagedera N,Talwar D,Mayer OH,Torigian DA,Campbell RM

更新日期：2019-07-01 00:00:00

abstract：:Cranial magnetic resonance (MR) images were prospectively obtained in 74 human immunodeficiency virus (HIV)-seropositive subjects, all of whom had undergone MR imaging 24-42 months earlier. The images were interpreted by neuroradiologists blinded to the subject's clinical status and were compared with the initial MR i...

journal_title：Radiology

authors： Post MJ,Berger JR,Duncan R,Quencer RM,Pall L,Winfield D

更新日期：1993-09-01 00:00:00

abstract：PURPOSE:To investigate whether smoking has an effect on recurrent lumen narrowing after percutaneous transluminal angioplasty (PTA) or stent placement in lower-limb arteries. MATERIALS AND METHODS:A total of 650 patients (median age, 70 years; 389 men) with peripheral artery disease who underwent iliac artery PTA (n =...

journal_title：Radiology

authors： Schillinger M,Exner M,Mlekusch W,Haumer M,Sabeti S,Ahmadi R,Wagner O,Minar E

更新日期：2004-06-01 00:00:00

abstract：:Medullary carcinoma of the breast is an uncommon tumor, which may mimic a benign mass at both mammography and ultrasonography (US). A total of 24 medullary carcinomas visible at mammography appeared as round or oval, noncalcified masses with varying degrees of marginal lobulation. In six of the 24 patients, US demonst...

journal_title：Radiology

authors： Meyer JE,Amin E,Lindfors KK,Lipman JC,Stomper PC,Genest D

更新日期：1989-01-01 00:00:00

abstract：PURPOSE:To evaluate the frequency of the supraacetabular fossa (SAF) (pseudodefect of acetabular cartilage) at magnetic resonance (MR) arthrography of the hip and to compare the MR findings with those from arthroscopy. MATERIALS AND METHODS:All patients gave written permission for anonymized use of their medical data ...

journal_title：Radiology

authors： Dietrich TJ,Suter A,Pfirrmann CW,Dora C,Fucentese SF,Zanetti M

更新日期：2012-05-01 00:00:00

abstract：PURPOSE:To compare lung densitometric measurements that use a three-dimensional (3D) reconstruction of the lungs with those obtained from analysis of two-dimensional (2D) computed tomographic (CT) images, visual emphysema scores, and data from pulmonary function tests. MATERIALS AND METHODS:Thoracic helical CT scans w...

journal_title：Radiology

authors： Park KJ,Bergin CJ,Clausen JL

更新日期：1999-05-01 00:00:00

abstract：:A linear-array, silicon pixel detector, capable of counting single photons, was applied to mammography by using a synchrotron radiation beam. Images were obtained of both a mammographic phantom and a breast-tissue sample. The phantom image was acquired with a mean glandular dose of 0.32 mGy. This detector combined wit...

journal_title：Radiology

authors： Arfelli F,Bonvicini V,Bravin A,Cantatore G,Castelli E,Dalla Palma L,Di Michiel M,Longo R,Olivo A,Pani S,Pontoni D,Poropat P,Prest M,Rashevsky A,Tromba G,Vacchi A

更新日期：1998-09-01 00:00:00

abstract：:Background Chest CT is used to assess the severity of lung involvement in coronavirus disease 2019 (COVID-19). Purpose To determine the changes in chest CT findings associated with COVID-19 from initial diagnosis until patient recovery. Materials and Methods This retrospective review included patients with real-time p...

journal_title：Radiology

authors： Pan F,Ye T,Sun P,Gui S,Liang B,Li L,Zheng D,Wang J,Hesketh RL,Yang L,Zheng C

更新日期：2020-06-01 00:00:00

abstract：:The authors describe mammographic and pathologic evidence of the growth of a fibroadenoma in an 82-year-old obese woman, 44 years after menopause, who had never been treated with hormone therapy. The patient's obesity is hypothesized as the causal factor for increased estrogen levels leading to growth of the fibroaden...

journal_title：Radiology

authors： Swisher RC,Gade NR,Suk JJ,Fu YS,Bassett LW

更新日期：1992-08-01 00:00:00

abstract：PURPOSE:To evaluate the diagnostic performance of gray-scale ultrasonography (US) and elastography in differentiating benign and malignant thyroid nodules. MATERIALS AND METHODS:This was an institutional review board-approved retrospective study with waiver of informed consent. A total of 703 solid thyroid nodules in ...

journal_title：Radiology

authors： Moon HJ,Sung JM,Kim EK,Yoon JH,Youk JH,Kwak JY

更新日期：2012-03-01 00:00:00

abstract：PURPOSE:To evaluate the accuracy of preoperative computed tomography (CT) in predicting the location and type of ductal involvement and malignant transformation in intraductal papillary mucinous (IPM) pancreatic tumors and to determine the predictive factors for malignancy at CT. MATERIALS AND METHODS:The helical CT s...

journal_title：Radiology

authors： Taouli B,Vilgrain V,Vullierme MP,Terris B,Denys A,Sauvanet A,Hammel P,Menu Y

更新日期：2000-12-01 00:00:00

abstract：:Balloon dilation is a well-described, nonoperative, alternative treatment for postoperative strictures of the colon and rectum. This procedure may not be technically feasible when an occluded lumen prevents passage of a guide wire across the obstruction. The authors describe the use of transrectal ultrasound guidance ...

journal_title：Radiology

authors： Eschelman DJ,Alexander AA,Goldstein SD,Shapiro MJ

更新日期：1993-11-01 00:00:00

abstract：:The effects of cyclosporin A (CyA), an immunosuppressive agent that is potentially nephrotoxic, on the kidneys of 9 liver transplant recipients were studied with serial 99mTc-DTPA and 131I-hippuran scans. In addition, renal function was determined by measuring serum creatinine levels during the second postoperative we...

journal_title：Radiology

authors： Klintmalm GB,Klingensmith WC 3rd,Iwatsuki S,Schröter GP,Starzl TE

更新日期：1982-01-01 00:00:00

abstract：PURPOSE:To investigate the histopathologic anatomy of calcium pyrophosphate dihydrate (CPPD) crystal deposition in and around the atlantoaxial joint and the association between CPPD crystal deposition and subchondral cysts, erosions, and fracture involving the odontoid process of the axis. MATERIALS AND METHODS:One ad...

journal_title：Radiology

authors： Kakitsubata Y,Boutin RD,Theodorou DJ,Kerr RM,Steinbach LS,Chan KK,Pathria MN,Haghighi P,Resnick D

更新日期：2000-07-01 00:00:00

abstract：PURPOSE:To determine whether magnetic resonance (MR) imaging with diffusion-weighted (DW) imaging can help discriminate between radiologically indeterminate benign and malignant orbital masses and to identify optimal apparent diffusion coefficient (ADC) thresholds for such discrimination. MATERIALS AND METHODS:Informe...

journal_title：Radiology

authors： Sepahdari AR,Aakalu VK,Setabutr P,Shiehmorteza M,Naheedy JH,Mafee MF

更新日期：2010-08-01 00:00:00

abstract：PURPOSE:To compare breast cancer disease-free survival (DFS) outcomes of patients with newly diagnosed breast cancer without and with preoperative magnetic resonance (MR) imaging. MATERIALS AND METHODS This study was approved by an institutional review board, and informed consent was waived. From 2004 to 2009 (unilater...

journal_title：Radiology

authors： Yi A,Cho N,Yang KS,Han W,Noh DY,Moon WK

更新日期：2015-09-01 00:00:00

abstract：:Peripheral magnetic resonance (MR) angiography was performed in eight volunteers, with a temperature-controlled water blanket. After warming of the right foot, unobserved vessels became conspicuous in all patients: Average increase in signal intensity was nearly twofold in the major artery and vein depicted. A similar...

journal_title：Radiology

authors： Blackband SJ,Buckley DL,Knowles AJ,Gibbs P,Turnbull LW,Horsman A

更新日期：1996-03-01 00:00:00

abstract：PURPOSE:To compare negative appendectomy and perforation rates in children who underwent ultrasonography (US), computed tomography (CT), or no imaging before urgent appendectomy. MATERIALS AND METHODS:All children who underwent urgent appendectomy during a 4(1/2)-year period were identified in a surgical billing datab...

journal_title：Radiology

authors： Applegate KE,Sivit CJ,Salvator AE,Borisa VJ,Dudgeon DL,Stallion AE,Grisoni ER

更新日期：2001-07-01 00:00:00

abstract：PURPOSE:To quantify tumor perfusion after transcatheter arterial embolization (TAE) with functional computed tomography (CT) and to validate the reproducibility of quantification measurements. MATERIALS AND METHODS:This study was conducted in accordance with an institutional animal care and use committee-approved prot...

journal_title：Radiology

authors： Kan Z,Kobayashi S,Phongkitkarun S,Charnsangavej C

更新日期：2005-10-01 00:00:00

abstract：PURPOSE:To evaluate use of positron emission tomography (PET) versus computed tomography (CT) in detection of pancreatic cancer and determine the value of quantitative and visual image interpretation of these techniques. MATERIALS AND METHODS:Within 8 weeks before surgery, 73 patients with suspected pancreatic cancer ...

journal_title：Radiology

authors： Stollfuss JC,Glatting G,Friess H,Kocher F,Berger HG,Reske SN

更新日期：1995-05-01 00:00:00

abstract：:Differences in magnetic resonance (MR) imaging signal-to-noise (S/N) performance between saddle-shaped and solenoidal coils have been postulated. Each coil shape is tied to a particular magnetic field configuration, so that they are not typically interchangeable except in special situations. The solenoidal coil is pre...

journal_title：Radiology

authors： Arakawa M,Crooks LE,McCarten B,Hoenninger JC,Watts JC,Kaufman L

更新日期：1985-01-01 00:00:00

abstract：:Tarsal navicular stress fractures are a potential source of disabling foot pain in physically active individuals. The diagnosis of tarsal navicular stress fracture requires a high index of clinical and radiographic suspicion because the fracture is only rarely evident on routine radiographs or standard tomograms. The ...

journal_title：Radiology

authors： Pavlov H,Torg JS,Freiberger RH

更新日期：1983-09-01 00:00:00

abstract：PURPOSE:To measure scanner and patient variation in computed tomographic (CT) numbers for electron-beam CT and to determine the ability of calibration phantoms to reduce variability in calcium quantitation. MATERIALS AND METHODS:Two calibration phantoms were imaged to ensure longitudinal homogeneity and to determine t...

journal_title：Radiology

authors： McCollough CH,Kaufmann RB,Cameron BM,Katz DJ,Sheedy PF 2nd,Peyser PA

更新日期：1995-07-01 00:00:00

abstract：:Background Relevance of antiangiogenic treatment with bevacizumab in patients with glioblastoma is controversial because progression-free survival benefit did not translate into an overall survival (OS) benefit in randomized phase III trials. Purpose To perform longitudinal characterization of intratumoral angiogenesi...

journal_title：Radiology

authors： Kickingereder P,Brugnara G,Hansen MB,Nowosielski M,Pflüger I,Schell M,Isensee F,Foltyn M,Neuberger U,Kessler T,Sahm F,Wick A,Heiland S,Weller M,Platten M,von Deimling A,Maier-Hein KH,Østergaard L,van den Bent MJ,Gor

更新日期：2020-10-01 00:00:00

abstract：PURPOSE:To prospectively evaluate the accuracy of using physical examination to identify puncture-related groin pseudoaneurysms, as assessed by using duplex ultrasonography (US), after percutaneous transluminal procedures and to prospectively evaluate the association between preinterventional platelet count, antiplatel...

journal_title：Radiology

authors： Mlekusch W,Haumer M,Mlekusch I,Dick P,Steiner-Boeker S,Bartok A,Sabeti S,Exner M,Wagner O,Minar E,Schillinger M

更新日期：2006-08-01 00:00:00

abstract：PURPOSE:To determine the ability to use computed tomography (CT) to predict invasion of adjacent nerves or vessels by oral cavity tumors. MATERIALS AND METHODS:Contrast material-enhanced CT scans and histopathologic reports were retrospectively reviewed in 48 patients (36 men, 12 women) aged 38-75 years who underwent ...

journal_title：Radiology

authors： Mukherji SK,Weeks SM,Castillo M,Yankaskas BC,Krishnan LA,Schiro S

更新日期：1996-01-01 00:00:00

abstract：PURPOSE:To analyze the effect of a decrease in computed tomographic (CT) colonographic voltage, from 100 and 120 kVp to 80 kVp and reconstructed with filtered back projection ( FBP filtered back projection ), on radiation dose, image noise, and diagnostic performance in anthropomorphic phantoms and to assess the effect...

journal_title：Radiology

authors： Shin CI,Kim SH,Lee ES,Lee DH,Hwang EJ,Chung SY,Lee JM,Han JK,Choi BI

更新日期：2014-12-01 00:00:00

abstract：:The safety of small-caliber firearms in a 1.5-T magnetic resonance (MR) imaging environment was assessed with six handguns, which were unloaded before testing. Each firearm was withdrawn barrel-first to assess the interaction of the magnetic field with the hammer and/or trigger. Two of the six weapons discharged repro...

journal_title：Radiology

authors： Kanal E,Shaibani A

更新日期：1994-12-01 00:00:00