Pulmonary embolism: segmental appearance of perfusion lung scan defects correlates with successful response to thrombolytic therapy.

Abstract:

:Lung scan data from a series of 45 patients receiving thrombolytic therapy were reviewed to determine if any pattern on the pretherapy perfusion lung scans could be identified that predicted response to therapy. A segmental appearance on the pretherapy scans (complete or nearly complete absence of perfusion in a whole segment or a very large subsegment) was correlated with the amount of improvement in perfusion on lung scans obtained 24 hours after the start of thrombolytic therapy. As a group, patients with a segmental appearance on the pretherapy lung scans had more improvement in the perfusion reduction score than patients with a nonsegmental appearance (P less than .005). However, the correlation between segmental appearance and a favorable response to thrombolytic therapy was not strong enough to allow use of this appearance in the selection of patients for therapy.

journal_name

Radiology

journal_title

Radiology

authors

Parker JA,Nagel JS,Drum DE,Tumeh SS,Goldhaber SZ

doi

10.1148/radiology.174.2.2104990

subject

Has Abstract

pub_date

1990-02-01 00:00:00

pages

483-6

issue

2

eissn

0033-8419

issn

1527-1315

journal_volume

174

pub_type

杂志文章
  • Ultrasonic features of pyogenic liver abscesses.

    abstract::Ultrasonic features of 21 surgically confirmed pyogenic liver abscesses in 18 patients were analyzed. Typical lesions were round or ovoid with a discrete, irregular, echo-poor margin. The number and intensity of internal echoes and sound transmission were variable. Such lesions can be aspirated percutaneously for defi...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.139.1.6259690

    authors: Newlin N,Silver TM,Stuck KJ,Sandler MA

    更新日期:1981-04-01 00:00:00

  • Capability of CT body scanning and ultrasonography to demonstrate the status of the biliary ductal system in patients with jaundice.

    abstract::The capability of ultrasonography and computed tomographic body scanning to demonstrate the status of the biliary tract was studied prospectively in 23 jaundiced patients. Ultrasonography correctly indicated the presence or absence of obstruction in 21 of the 23 patients and CT scanning in 20. Both procedures correctl...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/129.3.731

    authors: Goldberg HI,Filly RA,Korobkin M,Moss AA,Kressel HY,Callen PW

    更新日期:1978-12-01 00:00:00

  • Cavernosal venocclusive insufficiency in male impotence: evaluation of degree and location.

    abstract::The author's experience with 72 patients with impotence, one patient with Peyronie disease (no impotence), and two healthy volunteers indicates that incompetence of the venocclusive mechanism of the corpora cavernosa is probably the most common cause of vasculogenic impotence. Manometric and angiographic studies are t...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.164.1.3588900

    authors: Bookstein JJ

    更新日期:1987-07-01 00:00:00

  • Myocardial bridging: depiction rate and morphology at CT coronary angiography--comparison with conventional coronary angiography.

    abstract:PURPOSE:To prospectively assess the depiction rate and morphologic features of myocardial bridging (MB) of coronary arteries with 64-section computed tomographic (CT) coronary angiography in comparison to conventional coronary angiography. MATERIALS AND METHODS:Patients were simultaneously enrolled in a prospective st...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2463062071

    authors: Leschka S,Koepfli P,Husmann L,Plass A,Vachenauer R,Gaemperli O,Schepis T,Genoni M,Marincek B,Eberli FR,Kaufmann PA,Alkadhi H

    更新日期:2008-03-01 00:00:00

  • Cocaine abuse: neurovascular complications.

    abstract::In a review of the records of 3,712 drug abusers, 13 patients were identified with neurologic deficits attributable to the use of cocaine. Ischemic manifestations were the most frequent, occurring in seven (54%) patients, with a mean age of 34.2 years. Three (23%) patients had subarachnoid hemorrhage, and three (23%) ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.170.1.2909100

    authors: Jacobs IG,Roszler MH,Kelly JK,Klein MA,Kling GA

    更新日期:1989-01-01 00:00:00

  • Ultrasonic appearance of mammary carcinoma with a dedicated whole-breast scanner.

    abstract::Forty-four pathologically proved mammary carcinomas were studied by clinical examination, xeroradiography, and ultrasonography with a dedicated whole-breast scanner. Abnormalities reflecting carcinoma were shown by echography in 90% of cases and xeromammography in 97%. Ultrasonic manifestations of malignancy were sepa...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.142.3.7063690

    authors: Maturo VG,Zusmer NR,Gilson AJ,Bear B

    更新日期:1982-03-01 00:00:00

  • Thoracic actinomycosis: CT findings in eight patients.

    abstract::The chest radiographs and computed tomographic (CT) scans obtained in eight patients with pathologically proved cases of thoracic actinomycosis were independently reviewed by two observers. All patients were alcoholic men aged 42-62 years. Air-space consolidation, seen on the radiograph and CT scan in each case, was p...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.183.1.1549670

    authors: Kwong JS,Müller NL,Godwin JD,Aberle D,Grymaloski MR

    更新日期:1992-04-01 00:00:00

  • Liposarcoma of the extremities: MR and CT findings in the histologic subtypes.

    abstract::The findings on images of liposarcomas of the extremities in 48 patients (26 men and 22 women aged 20-85 years) were reviewed to correlate the histologic subtypes with radiologic appearance. Computed tomographic scans were obtained in 36 patients; magnetic resonance (MR) images, in 27 patients. The study group had 19 ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.186.2.8421750

    authors: Jelinek JS,Kransdorf MJ,Shmookler BM,Aboulafia AJ,Malawer MM

    更新日期:1993-02-01 00:00:00

  • Subcortical alterations in tissue microstructure adjacent to focal cortical dysplasia: detection at diffusion-tensor MR imaging by using magnetoencephalographic dipole cluster localization.

    abstract:PURPOSE:To determine whether changes at diffusion-tensor magnetic resonance (MR) imaging were present in children with intractable epilepsy and focal cortical dysplasia (FCD) in (a) subcortical white matter subjacent to MR imaging-visible areas of FCD, (b) subcortical white matter beyond the MR imaging-visible abnormal...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2511081092

    authors: Widjaja E,Zarei Mahmoodabadi S,Otsubo H,Snead OC,Holowka S,Bells S,Raybaud C

    更新日期:2009-04-01 00:00:00

  • Prognostic value of grading masticator space involvement in nasopharyngeal carcinoma according to MR imaging findings.

    abstract:PURPOSE:To derive a suitable method for grading masticator space invasion in nasopharyngeal carcinoma on the basis of magnetic resonance (MR) images and to determine its prognostic value in patients undergoing intensity-modulated radiation therapy. MATERIALS AND METHODS:After institutional review board approval and in...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.14132745

    authors: Zhang GY,Huang Y,Cai XY,Chen XP,Xu T,Wu J,Wei WH,Liu LZ,Huang ZL,Zhou MM,Xia ST,Wang YJ

    更新日期:2014-10-01 00:00:00

  • Nonionic versus ionic contrast media in intravenous urography: clinical trial in 1,000 consecutive patients.

    abstract::A double-blind clinical trial was performed in 1,000 consecutive patients to compare the safety and efficacy of intravenously administered nonionic (iohexol) and ionic (metrizoate) urographic contrast media. The patients ranged in age from 10 to 80 years. The incidence of mild to moderate adverse effects was 7.7% with...

    journal_title:Radiology

    pub_type: 临床试验,杂志文章

    doi:10.1148/radiology.167.3.3283830

    authors: Jacobsson BF,Jorulf H,Kalantar MS,Narasimham DL

    更新日期:1988-06-01 00:00:00

  • Estimating glomerular filtration rate in kidney donors: a model constructed with renal volume measurements from donor CT scans.

    abstract:PURPOSE:To create a model to estimate glomerular filtration rate (GFR) in healthy individuals, such as renal transplant donors, by using renal volume measurements derived from multidetector computed tomographic (CT) scans, serum creatinine level, height, weight, race, and age, and to compare the performance of this kid...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2521081873

    authors: Herts BR,Sharma N,Lieber M,Freire M,Goldfarb DA,Poggio ED

    更新日期:2009-07-01 00:00:00

  • The fascicles of the lateral meniscus: an anatomic-arthrographic correlation.

    abstract::A model of the normal anatomy of the capsular attachments of the posterior horn of the lateral meniscus is developed based upon anatomic dissections. The term "fascicles" is applied to the delicate bands of connective tissue which join the posterior lateral meniscus to the joint capsule around the popliteal synovial s...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/114.2.335

    authors: Jelaso DV

    更新日期:1975-02-01 00:00:00

  • Photographic method of recording radiation fields using the localizer light for illumination.

    abstract::By interposing a camera with a fish-eye lens between the collimator and the illuminated field, radiotherapy ports can be recorded using the localizer light for illumination. An acrylic mold of the camera was used to maintain alignment and immobilization during the necessarily long exposures. The authors consider this ...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/123.3.801

    authors: Pantoja E,Frede T,Leininger V

    更新日期:1977-06-01 00:00:00

  • Size and shape of the pituitary gland during pregnancy and post partum: measurement with MR imaging.

    abstract::Cranial magnetic resonance (MR) imaging was performed in 38 pregnant and postpartum women and 30 nonpregnant age-matched control subjects to establish standards for pituitary gland size and shape during this period. Gland height and infundibulum width were measured on midline T1-weighted sagittal images. Gland convexi...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.181.2.1924800

    authors: Elster AD,Sanders TG,Vines FS,Chen MY

    更新日期:1991-11-01 00:00:00

  • Intracranial hemorrhage in asymptomatic neonates: prevalence on MR images and relationship to obstetric and neonatal risk factors.

    abstract:PURPOSE:To retrospectively evaluate the prevalence of neonatal intracranial hemorrhage (ICH) and its relationship to obstetric and neonatal risk factors. MATERIALS AND METHODS:Pregnant women were recruited for a prospective study of neonatal brain development; the study was approved by the institutional review board a...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2422060133

    authors: Looney CB,Smith JK,Merck LH,Wolfe HM,Chescheir NC,Hamer RM,Gilmore JH

    更新日期:2007-02-01 00:00:00

  • Postoperative irradiation of pterygia: ten more years of experience.

    abstract::"Bare sclera" excision followed by 90Sr beta irradiation has been used at Bellevue Hospital for more than 20 years as standard therapy for pterygia. Primary treatment was successful in approximately 90% of cases, and 80% of the failures were salvaged by a second course. This policy is recommended for similar patient p...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/128.3.753

    authors: Cooper JS

    更新日期:1978-09-01 00:00:00

  • Lumbar myelography with iohexol and metrizamide: a comparative multicenter prospective study.

    abstract::Diagnostic quality of radiographs and adverse reactions associated with the use of metrizamide and iohexol as contrast agents in lumbar myelography were compared in a prospective randomized double blind study in 350 patients at seven centers. The contrast media were administered in comparable volumes at a concentratio...

    journal_title:Radiology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1148/radiology.151.3.6371890

    authors: Kieffer SA,Binet EF,Davis DO,Gabrielsen TO,Kido DK,Latchaw RE,Turski PA,Shaw DD

    更新日期:1984-06-01 00:00:00

  • MR imaging-guided focused US ablation of breast cancer: histopathologic assessment of effectiveness-- initial experience.

    abstract:PURPOSE:To evaluate the effectiveness of noninvasive magnetic resonance (MR) imaging-guided focused ultrasonographic (US) ablation of breast carcinomas. MATERIALS AND METHODS:Before undergoing tumor resection, 12 patients with invasive breast carcinomas were treated with MR imaging-guided focused US ablation consistin...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2281012163

    authors: Gianfelice D,Khiat A,Amara M,Belblidia A,Boulanger Y

    更新日期:2003-06-01 00:00:00

  • Relationship of Trochlear Morphology and Patellofemoral Joint Alignment to Superolateral Hoffa Fat Pad Edema on MR Images in Individuals with or at Risk for Osteoarthritis of the Knee: The MOST Study.

    abstract::Purpose To determine the relationship of patellofemoral joint alignment and trochlear morphology to superolateral Hoffa fat pad (SHFP) edema on magnetic resonance (MR) images in older adults with or at risk for osteoarthritis of the knee. Materials and Methods Institutional review board approval and written informed c...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2017162342

    authors: Widjajahakim R,Roux M,Jarraya M,Roemer FW,Neogi T,Lynch JA,Lewis CE,Torner JC,Felson DT,Guermazi A,Stefanik JJ

    更新日期:2017-09-01 00:00:00

  • False-Positive Measurement at 2-Hydroxyglutarate MR Spectroscopy in Isocitrate Dehydrogenase Wild-Type Glioblastoma: A Multifactorial Analysis.

    abstract::Background Isocitrate dehydrogenase (IDH) mutation has become one of the most important prognostic biomarkers in glioma management. Measurement of 2-hydroxyglutarate (2HG) with MR spectroscopy has shown high pooled sensitivity, although false-positive results with MR spectroscopy have been reported. Purpose To investi...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2019182200

    authors: Suh CH,Kim HS,Paik W,Choi C,Ryu KH,Kim D,Woo DC,Park JE,Jung SC,Choi CG,Kim SJ

    更新日期:2019-06-01 00:00:00

  • Percutaneous self-expanding metal stents versus endoscopic polyethylene endoprostheses for treating malignant biliary obstruction: randomized clinical trial.

    abstract:PURPOSE:To compare percutaneous self-expanding metal stents with conventional endoscopic polyethylene endoprostheses for treatment of malignant biliary obstruction by means of a prospective randomized clinical trial. MATERIALS AND METHODS:Patients with biliary obstruction due to inoperable primary carcinoma of the pan...

    journal_title:Radiology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1148/radiol.2243011517

    authors: Piñol V,Castells A,Bordas JM,Real MI,Llach J,Montañà X,Feu F,Navarro S

    更新日期:2002-10-01 00:00:00

  • Superior cervical extension of the thymus: a normal finding that should not be mistaken for a mass.

    abstract:PURPOSE:To determine the proportion of children and young adults in whom the thymus extends superiorly above the level of the manubrium into the anterior cervical tissues on magnetic resonance (MR) imaging studies. MATERIALS AND METHODS:This retrospective study was approved by the institutional review board, and writt...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.10091792

    authors: Costa NS,Laor T,Donnelly LF

    更新日期:2010-07-01 00:00:00

  • Long-term Graft and Patient Survival after Percutaneous Angioplasty or Arterial Stent Placement for Transplant Renal Artery Stenosis: A 21-year Matched Cohort Study.

    abstract::Purpose To compare long-term graft and patient survival after percutaneous angioplasty (PTA) or stent placement for transplant renal artery stenosis (TRAS) with a control cohort without TRAS. Materials and Methods This is a retrospective matched cohort study of 41 patients (median age, 49 years; range, 18-72 years), i...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2018181320

    authors: Patel U,Kumar S,Johnson OW,Jeon JH,Das R

    更新日期:2019-02-01 00:00:00

  • Workers with Libby amphibole exposure: retrospective identification and progression of radiographic changes.

    abstract:PURPOSE:To assess how early pleural and/or parenchymal abnormalities consistent with asbestos exposure could be ascertained and to identify factors associated with progression. MATERIALS AND METHODS:Informed consent was obtained under an institutional review board-approved protocol. Multiple sequential chest radiograp...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.10091447

    authors: Larson TC,Meyer CA,Kapil V,Gurney JW,Tarver RD,Black CB,Lockey JE

    更新日期:2010-06-01 00:00:00

  • Sleep apnea syndrome: comparison of MR imaging of the oropharynx with physiologic indexes.

    abstract:PURPOSE:To compare magnetic resonance (MR) imaging of the oropharynx in patients with sleep apnea syndrome with fiberoptic nasopharyngoscopy, and oropharyngeal pressure and apnea index values. MATERIALS AND METHODS:After sleep induction, 24 patients with sleep apnea syndrome and nine patients with non-sleep-apnea snor...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.201.2.8888230

    authors: Suto Y,Matsuda E,Inoue Y,Suzuki T,Ohta Y

    更新日期:1996-11-01 00:00:00

  • Temporomandibular joint injuries.

    abstract::The clinical and radiologic findings in 30 patients who sustained injuries to the temporomandibular joint (TMJ) were retrospectively analyzed. Imaging consisted of variable combinations of radiography, tomography, two-compartment arthrography, computed tomography, and magnetic resonance imaging and was performed 2 day...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.173.1.2781010

    authors: Schellhas KP

    更新日期:1989-10-01 00:00:00

  • Endometrial blood flow analysis in postmenopausal women: can it help differentiate benign from malignant causes of endometrial thickening?

    abstract:PURPOSE:To determine if prominent vascularity and low pulsatility index (PI) and resistive index (RI) in endometrial arteries help differentiate carcinoma from benign lesions. MATERIALS AND METHODS:Forty-five postmenopausal women with at least 8-mm-thick endometrium at endovaginal ultrasound (US) underwent color duple...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiology.195.3.7753990

    authors: Sheth S,Hamper UM,McCollum ME,Caskey CI,Rosenshein NB,Kurman RJ

    更新日期:1995-06-01 00:00:00

  • The round nipple shadow.

    abstract::It is usually easy to distinguish the round nipple shadow from a lesion, especially by means of repeat radiographs with nipple markers. However, the radiologist must occasionally interpret a round density in the lower chest on the basis of a single radiograph or series of radiographs. Fortunately, a nipple shadow usua...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/121.2.293

    authors: Ferris RA,White AF

    更新日期:1976-11-01 00:00:00

  • Detection of Steatohepatitis in a Rat Model by Using Spectroscopic Shear-Wave US Elastography.

    abstract::Purpose To compare low- versus high-frequency ultrasonographic (US) elastography for detection of steatohepatitis in rats by using histopathologic findings as the reference standard. Materials and Methods Between March and September 2014, after receiving approval from the institutional animal care committee, 60 male S...

    journal_title:Radiology

    pub_type: 杂志文章

    doi:10.1148/radiol.2016160308

    authors: Kazemirad S,Zhang E,Nguyen BN,Bodson-Clermont P,Destrempes F,Trudel D,Cloutier G,Tang A

    更新日期:2017-03-01 00:00:00