Vena caval filter splaying: potential complication of use of the titanium Greenfield filter.


:Significant structural and mechanical differences exist between the titanium and stainless steel versions of the Greenfield filter (GF). The titanium GF has a longer leg length (49 mm vs 43 mm), a greater span (38.5 mm vs 28.0 mm), and a larger hook angle (41 degrees vs 23.5 degrees). In vitro tests demonstrated approximately sevenfold greater filter length shortening (a measure of filter splaying) for the titanium GF in response to a given applied load. These differences resulted in marked filter splaying and inferior vena cava (IVC) perforation in three patients in whom a titanium GF had been inserted. The aorta was penetrated by a filter leg in one patient, and abdominal or back pain was present in all three patients. In vitro tests involving thrombosis within a latex balloon revealed that the titanium GF, but not the stainless steel GF, remained splayed even in the face of clot retraction. Design modifications, possibly using shorter, thicker filter legs and using reduced hook angles, should be made in the titanium GF to decrease the risk of filter splaying and IVC perforation before widespread use of this device.






Teitelbaum GP,Jones DL,van Breda A,Matsumoto AH,Fellmeth BD,Chespak LW,Barth KH




Has Abstract


1989-12-01 00:00:00












  • Ingested foreign bodies: removal by magnet.

    abstract::Metallic foreign bodies ingested by eight patients (seven children) were removed from the upper gastrointestinal tract by means of a magnet inserted into the end of an orogastric tube. No patient required hospitalization, anesthesia, surgery, or subsequent radiography, and all patients remained asymptomatic. In no cas...


    pub_type: 杂志文章


    authors: Volle E,Hanel D,Beyer P,Kaufmann HJ

    更新日期:1986-08-01 00:00:00

  • High-resolution CT diagnosis of emphysema in symptomatic patients with normal chest radiographs and isolated low diffusing capacity.

    abstract::To determine the prevalence of "nonobstructive" (impairment of gas transfer) emphysema in a select population of smokers with dyspnea, a retrospective study of patients with emphysema evident at high-resolution computed tomography (HRCT) was undertaken. Four hundred seventy HRCT studies were reviewed. In 47 cases, cen...


    pub_type: 杂志文章


    authors: Klein JS,Gamsu G,Webb WR,Golden JA,Müller NL

    更新日期:1992-03-01 00:00:00

  • New tools of the trade.

    abstract::The author reviews the regulatory process through which new cardiovascular interventional devices reach the hands of the interventional radiologist and the cardiologist. The marketing mechanisms are outlined, as are the data requirements. The reader is taken step-by-step from device investigation conducted under an ap...


    pub_type: 临床试验,杂志文章


    authors: Reamer LA

    更新日期:1990-03-01 00:00:00

  • Clear cell renal cell carcinoma: discrimination from other renal cell carcinoma subtypes and oncocytoma at multiphasic multidetector CT.

    abstract:PURPOSE:To determine whether enhancement at multiphasic multidetector computed tomography (CT) can help differentiate clear cell renal cell carcinoma (RCC) from oncocytoma, papillary RCC, and chromophobe RCC. MATERIALS AND METHODS:With institutional review board approval for this HIPAA-compliant retrospective study, t...


    pub_type: 杂志文章


    authors: Young JR,Margolis D,Sauk S,Pantuck AJ,Sayre J,Raman SS

    更新日期:2013-05-01 00:00:00

  • Stage A adenocarcinoma of the prostate: transrectal US and sonographic-pathologic correlation.

    abstract::Results of transrectal ultrasound (TRUS) of the prostate and pathologic examination of specimens obtained at transurethral resection of the prostate (TURP) were compared in 29 patients with clinical stage A adenocarcinoma. Ten specimens contained no residual tumors larger than 5 mm in diameter; in the remaining 19 gla...


    pub_type: 杂志文章


    authors: Sheth S,Hamper UM,Walsh PC,Holtz PM,Epstein JI

    更新日期:1991-04-01 00:00:00

  • MR hydrometry to assess exocrine function of the pancreas: initial results of noninvasive quantification of secretion.

    abstract:PURPOSE:To evaluate magnetic resonance (MR) hydrometry, a method of quantifying fluid amounts by using MR imaging, for assessing the exocrine function of the pancreas after stimulation with secretin. MATERIALS AND METHODS:Images were obtained with a single-shot turbo spin-echo sequence by using a 1.0-T magnet with a q...


    pub_type: 杂志文章


    authors: Heverhagen JT,Müller D,Battmann A,Ishaque N,Boehm D,Katschinski M,Wagner HJ,Klose KJ

    更新日期:2001-01-01 00:00:00

  • Acute-phase response after stent implantation in the carotid artery: association with 6-month in-stent restenosis.

    abstract:PURPOSE:To determine the prognostic importance of periintervention serum levels of acute-phase reactants in 6-month restenosis after stent implantation in the carotid artery. MATERIALS AND METHODS:One hundred eight consecutive patients with 70% or greater stenosis of the internal carotid artery (ICA) according to the ...


    pub_type: 杂志文章


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

    更新日期:2003-05-01 00:00:00

  • Distal radius in adolescent girls with anorexia nervosa: trabecular structure analysis with high-resolution flat-panel volume CT.

    abstract:PURPOSE:To examine trabecular microarchitecture with high-resolution flat-panel volume computed tomography (CT) and bone mineral density (BMD) with dual-energy x-ray absorptiometry (DXA) in adolescent girls with anorexia nervosa (AN) and to compare these results with those in normal-weight control subjects. MATERIALS ...


    pub_type: 杂志文章


    authors: Bredella MA,Misra M,Miller KK,Madisch I,Sarwar A,Cheung A,Klibanski A,Gupta R

    更新日期:2008-12-01 00:00:00

  • Radiation risks of medical imaging: separating fact from fantasy.

    abstract::During the past few years, several articles have appeared in the scientific literature that predict thousands of cancers and cancer deaths per year in the U.S. population caused by medical imaging procedures that use ionizing radiation. These predictions are computed by multiplying small and highly speculative risk fa...


    pub_type: 杂志文章,评审


    authors: Hendee WR,O'Connor MK

    更新日期:2012-08-01 00:00:00

  • Focal Nodular Hyperplasia and Hepatocellular Adenoma: Accuracy of Gadoxetic Acid-enhanced MR Imaging--A Systematic Review.

    abstract:PURPOSE:To perform a systematic review to evaluate the diagnostic accuracy of hepatobiliary (HPB) phase gadoxetic acid-enhanced MR imaging of the liver in the diagnosis of focal nodular hyperplasia (FNH) versus hepatocellular adenoma (HCA) and to identify the rate of (a) reported HCAs that are iso- or hyperintense to l...


    pub_type: 杂志文章,评审


    authors: McInnes MD,Hibbert RM,Inácio JR,Schieda N

    更新日期:2015-11-01 00:00:00

  • Effects of a program to train radiologic technologists to identify abnormalities on mammograms.

    abstract:PURPOSE:To assess whether radiologic technologists could be successfully trained to identify abnormalities on mammograms. MATERIALS AND METHODS:Eight radiologic technologists from two different institutions took a pretest, underwent an 8-hour training course followed by a period of preceptorship, and then took a postt...


    pub_type: 杂志文章


    authors: Bassett LW,Hollatz-Brown AJ,Bastani R,Pearce JG,Hirji K,Chen L

    更新日期:1995-01-01 00:00:00

  • Comet-tail artifact from cholesterol crystals: observations in the postlithotripsy gallbladder and an in vitro model.

    abstract::The "comet tail" is a well-known ultrasound artifact that appears as a series of parallel bands radiating from a source. This artifact was observed in the gallbladder lumen in eight of 10 patients after extracorporeal shock wave lithotripsy of radiolucent calculi. To investigate the cause of the comet tail artifact, c...


    pub_type: 杂志文章


    authors: Shapiro RS,Winsberg F

    更新日期:1990-10-01 00:00:00

  • Cost effectiveness of chest CT in T1N0M0 lung cancer.

    abstract::The role of chest computed tomography (CT) in the evaluation of clinically staged T1N0M0 lung cancer is controversial. Using quantitative methods of decision analysis and data already available in the medical literature, the authors show how the clinical utility and cost effectiveness of chest CT are dependent on seve...


    pub_type: 杂志文章


    authors: Black WC,Armstrong P,Daniel TM

    更新日期:1988-05-01 00:00:00

  • (18)F-FPPRGD2 PET/CT: pilot phase evaluation of breast cancer patients.

    abstract:PURPOSE:To present data from the first prospective pilot phase trial of breast cancer participants imaged with fluorine 18 ((18)F)-2-fluoropropionyl-labeled PEGylated dimeric arginine-glycine-aspartic acid ( RGD arginine-glycine-aspartic acid ) peptide (PEG3-E[c{ RGD arginine-glycine-aspartic acid yk}]2) ( FPPRGD2 2-fl...


    pub_type: 杂志文章


    authors: Iagaru A,Mosci C,Shen B,Chin FT,Mittra E,Telli ML,Gambhir SS

    更新日期:2014-11-01 00:00:00

  • CT fluoroscopy--guided interventional procedures: techniques and radiation dose to radiologists.

    abstract:PURPOSE:To determine the radiation dose to radiologists who perform computed tomographic (CT) fluoroscopic interventional procedures by using a quick-check method and a low-milliampere technique. MATERIALS AND METHODS:Two hundred twenty CT fluoroscopy--guided interventional procedures were performed in 189 patients. P...


    pub_type: 杂志文章


    authors: Paulson EK,Sheafor DH,Enterline DS,McAdams HP,Yoshizumi TT

    更新日期:2001-07-01 00:00:00

  • Recurrent Glioblastoma: Combination of High Cerebral Blood Flow with MGMT Promoter Methylation Is Associated with Benefit from Low-Dose Temozolomide Rechallenge at First Recurrence.

    abstract::Purpose To determine if the combination of high cerebral blood flow (CBF) and O6-methylguanine DNA methyltransferase (MGMT) promoter methylation is associated with benefit from a second round of low-dose temozolomide (TMZ) (ie, rechallenge) in patients with glioblastoma at first recurrence. Materials and Methods The i...


    pub_type: 杂志文章


    authors: Kim C,Kim HS,Shim WH,Choi CG,Kim SJ,Kim JH

    更新日期:2017-01-01 00:00:00

  • Noninvasive measurement of extraction fraction and single-kidney glomerular filtration rate with MR imaging in swine with surgically created renal arterial stenoses.

    abstract:PURPOSE:To test whether magnetic resonance (MR) imaging enables accurate measurement of extraction fraction (EF) in swine with unilateral renal ischemia and to evaluate effects of renal arterial stenosis on EF and single-kidney glomerular filtration rate. MATERIALS AND METHODS:High-grade unilateral renal arterial sten...


    pub_type: 杂志文章


    authors: Coulam CH,Lee JH,Wedding KL,Spielman DM,Pelc NJ,Kee ST,Hill BB,Bouley DM,Derby GC,Myers BD,Sawyer-Glover AM,Sommer FG

    更新日期:2002-04-01 00:00:00

  • High resolution computed tomography of the temporal bone.

    abstract::The radiation dose and the anatomic detail of computed tomography (CT) and conventional tomography were studied in 18 patients with suspected acoustic neuroma, cholesteatoma, malignant tumor, and temporal bone fracture. It is concluded that CT is the technique of choice in patients suspected of having acoustic neuroma...


    pub_type: 杂志文章


    authors: Shaffer KA,Haughton VM,Wilson CR

    更新日期:1980-02-01 00:00:00

  • Intracerebral hemorrhage secondary to cerebral amyloid angiopathy.

    abstract::Cerebral amyloid angiopathy (CAA) is a cause of intracerebral hemorrhage in a significant proportion of normotensive patients. Two cases of pathologically proved multiple intracerebral hemorrhages due to CAA are reported. These hemorrhages are accurately demonstrated on computed tomography and are typically superficia...


    pub_type: 杂志文章


    authors: Patel DV,Hier DB,Thomas CM,Hemmati M

    更新日期:1984-05-01 00:00:00

  • Fibrous ureteral polyps.

    abstract::Twelve cases of fibrous ureteral polyps are presented, illustrating their characteristic radiographic appearances. Two types--a long pedunculated mobile variety having a smooth surface, and a relatively shorter lesion covered with thin, finger-like projections--may be identified. Demonstration of the typical findings ...


    pub_type: 杂志文章


    authors: Banner MP,Pollack HM

    更新日期:1979-01-01 00:00:00

  • Clinically serious abnormalities found incidentally at MR imaging of the brain: data from the Cardiovascular Health Study.

    abstract:PURPOSE:To determine the prevalence of clinically serious findings unrelated to stroke on cranial magnetic resonance (MR) images in a population of community-dwelling elderly people. MATERIALS AND METHODS:Neuroradiologists reviewed MR images of 3,672 people aged 65 years and older who were enrolled in a longitudinal, ...


    pub_type: 杂志文章,多中心研究


    authors: Yue NC,Longstreth WT Jr,Elster AD,Jungreis CA,O'Leary DH,Poirier VC

    更新日期:1997-01-01 00:00:00

  • Diagnostic Yield of Staging Brain MRI in Patients with Newly Diagnosed Non-Small Cell Lung Cancer.

    abstract::Background Existing guidelines are inconsistent regarding the indications for staging brain MRI in patients with newly diagnosed, early-stage non-small cell lung cancer (NSCLC). Purpose To evaluate the diagnostic yield of staging brain MRI in the initial evaluation of lung cancer. Materials and Methods This retrospect...


    pub_type: 杂志文章


    authors: Kim M,Suh CH,Lee SM,Kim HC,Aizer AA,Yanagihara TK,Bai HX,Guenette JP,Huang RY,Kim HS

    更新日期:2020-11-01 00:00:00

  • Skeletal development in fetal pig specimens: MR imaging of femur with histologic comparison.

    abstract:PURPOSE:To evaluate the magnetic resonance (MR) imaging features of the developing femur in fetal pig specimens. MATERIALS AND METHODS:MR images of 15 fetal pig femurs, which were categorized into three groups of specimens representing each third of the gestational period, were used to compare increasing femoral lengt...


    pub_type: 杂志文章


    authors: Connolly SA,Jaramillo D,Hong JK,Shapiro F

    更新日期:2004-11-01 00:00:00

  • Supraacetabular fossa (pseudodefect of acetabular cartilage): frequency at MR arthrography and comparison of findings at MR arthrography and arthroscopy.

    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 ...


    pub_type: 杂志文章


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

    更新日期:2012-05-01 00:00:00

  • Early renal involvement in diabetes mellitus: comparison of renal Doppler US and radioisotope evaluation of glomerular hyperfiltration.

    abstract:PURPOSE:To evaluate the usefulness of Doppler ultrasonography (US) in the diagnosis of hyperfiltration in patients with insulin-dependent diabetes mellitus (IDDM). MATERIALS AND METHODS:Eighty-one consecutive patients with IDDM were studied. All patients were normotensive and had normal creatinine and blood urea nitro...


    pub_type: 临床试验,杂志文章


    authors: Marzano MA,Pompili M,Rapaccini GL,Covino M,Cotroneo P,Manto A,Todaro L,Ghirlanda G,Gasbarrini G

    更新日期:1998-12-01 00:00:00

  • Detection of biliary duct narrowing and choledocholithiasis: accuracy of portal venous phase multidetector CT.

    abstract:PURPOSE:To retrospectively evaluate the sensitivity and specificity of 64-detector computed tomography (CT) in the portal venous phase by using transverse images and both multiplanar and minimum intensity reformations for the detection of biliary duct narrowing and choledocholithiasis, with magnetic resonance cholangio...


    pub_type: 杂志文章


    authors: Anderson SW,Rho E,Soto JA

    更新日期:2008-05-01 00:00:00

  • Thallium-201 distribution in the thyroid: relationship to thyroidal trapping function.

    abstract::Experiments were undertaken to determine the behavior of thallium-201 in the thyroid in relation to the iodide-trapping mechanism in rats. Iodide trapping was compared to thyroidal thallium-201 trapping 30 minutes after intravenous injection. Thallium-201 uptake followed iodide uptake in control rats. TSH- and T3-trea...


    pub_type: 杂志文章


    authors: Oster ZH,Strauss HW,Harrison K,Burns HD,Pitt B

    更新日期:1978-03-01 00:00:00

  • Prostatic urethra: experimental dilation in dogs.

    abstract::An animal study was undertaken to develop a balloon dilation technique that could be used in humans to treat the common ailment of benign prostatic hypertrophy. Dogs were used as a model because of the similarities in the prostate between the two species and the ready availability of the canines. A retrograde transure...


    pub_type: 杂志文章


    authors: Castaneda F,Lund G,Larson BW,Limas E,Urness M,Reddy P,Wasserman N,Hulbert J,Hunter DW,Castaneda-Zuniga WR

    更新日期:1987-06-01 00:00:00

  • Characteristics of displaceable and nondisplaceable meniscal tears at kinematic MR imaging of the knee.

    abstract:PURPOSE:To prospectively determine if kinematic magnetic resonance (MR) imaging of the knee may demonstrate displacement of menisci with tears and, if so, to characterize displaceable and nondisplaceable meniscal tears. MATERIALS AND METHODS:The study was approved by the hospital's review board, and informed consent w...


    pub_type: 杂志文章


    authors: Boxheimer L,Lutz AM,Zanetti M,Treiber K,Labler L,Marincek B,Weishaupt D

    更新日期:2006-01-01 00:00:00

  • Multispectral MRI with Dual Fluorinated Probes to Track Mononuclear Cell Activity in Mice.

    abstract::Background MRI with fluorine 19 (19F) probes has shown an ability to track immune cell activity with a specific, stable, and quantitative signal. In addition, the chemical shift differences of selected 19F probes make dual-probe imaging possible. To improve 19F MRI sensitivity for dual-probe imaging, optimal fluorine ...


    pub_type: 杂志文章


    authors: Chirizzi C,De Battista D,Tirotta I,Metrangolo P,Comi G,Bombelli FB,Chaabane L

    更新日期:2019-05-01 00:00:00