Aortic dissection: magnetic resonance imaging.


:Fifteen patients with suspected or known aortic dissection were imaged with magnetic resonance (MR). Thirteen of these patients were eventually shown to have dissection. In most instances the diagnosis was established by aortography and/or computed tomography (CT) prior to the MR study. Surgical proof (6/13) and/or aortographic proof (10/13) were available in 11/13 patients with aortic dissection. MR demonstrated the intimal flap and determined whether the dissection was type A or type B. In addition, MR: differentiated between the true and false lumens; determined the origins of the celiac, superior mesenteric, and renal arteries from the true or false lumen in the cases where the dissection extended into the abdominal aorta (8/12); allowed post-surgical surveillance of the dissection; and identified aortoannular ectasia in the three patients who had Marfan syndrome. In addition to the 13 cases with dissection, there were two cases in whom the diagnosis of dissection was excluded by MR. Our early experience suggests that MR can serve as the initial imaging test in clinically suspected cases of aortic dissection and that the information provided by MR is sufficient to manage many cases. Additionally, MR obviates the use of iodinated contrast media.






Amparo EG,Higgins CB,Hricak H,Sollitto R




Has Abstract


1985-05-01 00:00:00












  • Ureteropelvic junction obstruction: treatment with percutaneous endopyelotomy.

    abstract::The authors review their experience with percutaneous endopyelotomy in the treatment of ureteropelvic junction obstruction. Twenty-four patients with symptoms of ureteropelvic junction obstruction underwent excretory urography, which revealed nonspecific narrowing in several cases. Angiography was performed in 14 pati...


    pub_type: 杂志文章


    authors: Bush WH,Brannen GE,Lewis GP

    更新日期:1989-05-01 00:00:00

  • Head CT for nontrauma patients in the emergency department: clinical predictors of abnormal findings.

    abstract:PURPOSE:To identify predictors of clinically important abnormal findings in computed tomography (CT) images of the head among emergency department (ED) patients without a history of trauma. MATERIALS AND METHODS:Approval was obtained from the institutional research ethics board, and informed consent from patients was ...


    pub_type: 杂志文章


    authors: Wang X,You JJ

    更新日期:2013-03-01 00:00:00

  • Imaging the postoperative neck.

    abstract::The variety of cervical lymphadenectomy and neck reconstructive procedures that have been developed in the past 20 years has led to confusion about nomenclature in the literature. In addition, some of these operations result in gross alteration of the normal anatomy. The authors review the present classification syste...


    pub_type: 杂志文章,评审


    authors: Som PM,Urken ML,Biller H,Lidov M

    更新日期:1993-06-01 00:00:00

  • Intracranial plaque enhancement in patients with cerebrovascular events on high-spatial-resolution MR images.

    abstract:PURPOSE:To characterize intracranial plaque inflammation in vivo by using three-dimensional (3D) high-spatial-resolution contrast material-enhanced black-blood (BB) magnetic resonance (MR) imaging and to investigate the relationship between intracranial plaque inflammation and cerebrovascular ischemic events. MATERIAL...


    pub_type: 杂志文章


    authors: Qiao Y,Zeiler SR,Mirbagheri S,Leigh R,Urrutia V,Wityk R,Wasserman BA

    更新日期:2014-05-01 00:00:00

  • Hemolytic-uremic syndrome: intrarenal arterial Doppler patterns as a useful guide to therapy.

    abstract::Seventeen children with acute renal failure due to the hemolytic-uremic syndrome were examined with duplex Doppler ultrasound. Serial measurements of intrarenal arterial pulsatility were obtained by means of the Pourcelot index. These were compared with daily urine volume, both during the phase of renal failure (durin...


    pub_type: 杂志文章


    authors: Patriquin HB,O'Regan S,Robitaille P,Paltiel H

    更新日期:1989-09-01 00:00:00

  • CT colonography for combined colonic and extracolonic surveillance after curative resection of colorectal cancer.

    abstract:PURPOSE:To determine the accuracy of contrast material-enhanced computed tomographic (CT) colonography for postoperative surveillance in colorectal cancer patients without clinical or laboratory evidence of disease recurrence. MATERIALS AND METHODS:The Institutional Review Board approved this HIPAA-compliant study and...


    pub_type: 杂志文章


    authors: Kim HJ,Park SH,Pickhardt PJ,Yoon SN,Lee SS,Yee J,Kim DH,Kim AY,Kim JC,Yu CS,Ha HK

    更新日期:2010-12-01 00:00:00

  • Lateral arcuate ligaments of the diaphragm: anatomic variations at abdominal CT.

    abstract::The authors have occasionally observed nodular areas abutting the lateral diaphragmatic surface and extending into the posterior pararenal space on computed tomographic (CT) scans. Review of the anatomy literature revealed that this finding represents inferolateral extension of the lateral arcuate ligaments, which ref...


    pub_type: 杂志文章


    authors: Silverman PM,Cooper C,Zeman RK

    更新日期:1992-10-01 00:00:00

  • Application of region-of-interest imaging techniques to neurointerventional radiology.

    abstract::To reduce radiation exposure to patients and staff during neurointerventional procedures, region-of-interest (ROI) techniques were used with fluoroscopy, road mapping, and digital subtraction angiography in 19 patients. ROI filters, made of multiple layers of gadolinium, were attached to the collimators. Patient skin ...


    pub_type: 杂志文章


    authors: Rudin S,Guterman LR,Granger WE,Bednarek DR,Hopkins LN

    更新日期:1996-06-01 00:00:00

  • Real-time computer verification for radiation therapy treatment machines.

    abstract::A computer based verification system which monitors the operation of a 4-MV linear accelerator is described. Fourteen parameters can be checked for proper alignment prior to irradiation. A training simulator was also built to minimize interference with treatment schedules and to provide technicians with experience in ...


    pub_type: 杂志文章


    authors: Sternick ES,Berry JR,Curran B,Loomis SA

    更新日期:1979-04-01 00:00:00

  • Pediatric inflammatory bowel disease: assessment with scintigraphy with 99mTc white blood cells.

    abstract:PURPOSE:To evaluate the sensitivity and specificity of scintigraphy with technetium 99m white blood cells (WBC) for detection of colonic inflammation in children with and children without inflammatory bowel disease (IBD). MATERIALS AND METHODS:In 215 patients, uptake of 99mTc WBC in 3,440 bowel segments was graded. In...


    pub_type: 杂志文章


    authors: Charron M,del Rosario FJ,Kocoshis SA

    更新日期:1999-08-01 00:00:00

  • Malignant astrocytic tumors: clinical importance of apparent diffusion coefficient in prediction of grade and prognosis.

    abstract:PURPOSE:To retrospectively assess the apparent diffusion coefficient (ADC) for prediction of malignancy and prognosis of malignant astrocytic tumors. MATERIALS AND METHODS:The institutional review board approved this study and did not require patient informed consent. Findings from 37 consecutive patients (21 men, 16 ...


    pub_type: 杂志文章


    authors: Higano S,Yun X,Kumabe T,Watanabe M,Mugikura S,Umetsu A,Sato A,Yamada T,Takahashi S

    更新日期:2006-12-01 00:00:00

  • Fatal aspiration of thick barium.

    abstract::The authors report a case of fatal aspiration of thick barium during esophagography in a 75-year-old woman. Apparently the patient held much of the barium in her mouth and then aspirated it as she tried to swallow. The authors suggest that thick barium be avoided when fluoroscopy shows that the patient has difficulty ...


    pub_type: 杂志文章


    authors: Lareau DG,Berta JW

    更新日期:1976-08-01 00:00:00

  • US depiction of partial-thickness tear of the rotator cuff.

    abstract:PURPOSE:To test previously defined ultrasound (US) criteria for identification of partial-thickness tears of the rotator cuff. MATERIALS AND METHODS:Before shoulder arthroscopy, 52 patients with shoulder pain for more than 3 months were examined with a 7.5-MHz commercially available linear-array transducer and a stand...


    pub_type: 杂志文章


    authors: van Holsbeeck MT,Kolowich PA,Eyler WR,Craig JG,Shirazi KK,Habra GK,Vanderschueren GM,Bouffard JA

    更新日期:1995-11-01 00:00:00

  • A comparison of the effects of 50 MeVd leads to be neutron and cobalt-60 irradiation of the kidneys of rhesus monkeys.

    abstract::Twenty rhesus monkeys had one kidney irradiated (after undergoing unilateral nephrectomies) with one of four doses: 960 or 1080 rads of 50 MeVd leads to Be neutrons, or 2350 or 2700 rads of 60Co. Whereas animals treated with the lower dose of neutrons or 60Co are alive with relatively normal renal function, those trea...


    pub_type: 杂志文章


    authors: Raulston GL,Gray KN,Gleiser CA,Jardine JH,Flow BL,Huchton JI,Bennett KR,Hussey DH

    更新日期:1978-07-01 00:00:00

  • Bronchioloalveolar carcinoma: focal area of ground-glass attenuation at thin-section CT as an early sign.

    abstract:PURPOSE:To assess an early thin-section computed tomographic (CT) finding of the localized formation of bronchioloalveolar carcinoma (BAC). MATERIALS AND METHODS:From October 1994 to September 1995, four consecutive patients with biopsy-proved BAC were studied. Thin-section CT (n=4), radiographic (n=4), pathologic (n=...


    pub_type: 杂志文章


    authors: Jang HJ,Lee KS,Kwon OJ,Rhee CH,Shim YM,Han J

    更新日期:1996-05-01 00:00:00

  • Vascular complications in renal allografts: detection with duplex Doppler US.

    abstract::Renal allografts are subject to many vascular complications. Over a 2-year period, 334 duplex Doppler ultrasonographic (US) examinations were performed in 88 renal allograft recipients. Vascular occlusion on the basis of severe vascular rejection was documented in ten patients (11.4%) for a sensitivity and specificity...


    pub_type: 杂志文章


    authors: Taylor KJ,Morse SS,Rigsby CM,Bia M,Schiff M

    更新日期:1987-01-01 00:00:00

  • Perforation of the inferior vena cava with aortic and vertebral penetration by a suprarenal Greenfield filter.

    abstract::Various complications have been reported after insertion of the Greenfield filter. This report describes an unusual complication after suprarenal placement of this filter: spreading of the filter struts, with perforation of the inferior vena cava, and penetration of the aorta and a vertebral body, followed by fracture...


    pub_type: 杂志文章


    authors: Kim D,Porter DH,Siegel JB,Simon M

    更新日期:1989-09-01 00:00:00

  • Kidney length correlated with age: normal values in children.

    abstract::Normal kidney length was measured on the excretory urogram in 262 children 0 to 14.5 years of age (422 kidneys). While mean values were similar to those in the literature, the standard deviation (0.785 cm) was much lower than that reported previously. ...


    pub_type: 杂志文章


    authors: Currarino G,Williams B,Dana K

    更新日期:1984-03-01 00:00:00

  • Cerebellar injury in preterm infants: incidence and findings on US and MR images.

    abstract:PURPOSE:To investigate the incidence and characteristics of cerebellar injury in a cohort of very preterm infants by using the mastoid fontanelle (MF) and posterior fontanelle (PF) approach in addition to routine cranial ultrasonography (US) through the anterior fontanelle (AF), with magnetic resonance (MR) imaging as ...


    pub_type: 杂志文章


    authors: Steggerda SJ,Leijser LM,Wiggers-de Bruïne FT,van der Grond J,Walther FJ,van Wezel-Meijler G

    更新日期:2009-07-01 00:00:00

  • Intramedullary spinal cord germinoma: case report and review of the literature.

    abstract::A 33-year-old man with an intramedullary spinal cord germinoma was treated successfully with partial resection, combined chemotherapy with carboplatin and etoposide, and reduced-dose local-field radiation therapy. The authors believe this is the first case without syncytiotrophoblastic giant cells so treated. The lite...


    pub_type: 杂志文章,评审


    authors: Hata M,Ogino I,Sakata K,Murata H,Kawano N,Matsubara S

    更新日期:2002-05-01 00:00:00

  • Pathologic conditions in the small bowel: findings at fat-suppressed gadolinium-enhanced MR imaging with an optimized suspension of oral magnetic particles.

    abstract::Depiction of small-bowel pathologic conditions was optimized with use of a negative luminal contrast agent, spectral fat suppression, and gadolinium enhancement in an excised gut phantom. The method was applied in nine patients in conjunction with standard enteroclysis examinations. Bulk susceptibility effects of oral...


    pub_type: 杂志文章


    authors: Faber SC,Stehling MK,Holzknecht N,Gauger J,Helmberger T,Reiser M

    更新日期:1997-10-01 00:00:00

  • Two-dimensional echocardiographic identification of a right ventricle tumor.

    abstract::A metastatic tumor in the right ventricle was clearly visualized using two-dimensional echocardiography. The location, size, and mobility of the tumor were easily demonstrated. Two-dimensional echocardiography is superior to M-mode echocardiography in such cases. ...


    pub_type: 杂志文章


    authors: Jaffe CC,Kelley MJ,Taunt KA

    更新日期:1978-11-01 00:00:00

  • Biofunctionalized Hybrid Magnetic Gold Nanoparticles as Catalysts for Photothermal Ablation of Colorectal Liver Metastases.

    abstract::Purpose To demonstrate that anti-MG1 conjugated hybrid magnetic gold nanoparticles (HNPs) act as a catalyst during photothermal ablation (PTA) of colorectal liver metastases, and thus increase ablation zones. Materials and Methods All experiments were performed with approval of the institutional animal care and use co...


    pub_type: 杂志文章


    authors: White SB,Kim DH,Guo Y,Li W,Yang Y,Chen J,Gogineni VR,Larson AC

    更新日期:2017-12-01 00:00:00

  • Inflammatory fibroid polyp of the colon simulating malignancy.

    abstract::The authors report an inflammatory fibroid polyp of the colon which simulated a tumor on the air-contrast barium-enema examination. Histological evaluation revealed the inflammatory nature of the polyp. These rare lesions can be radiographically indistinguishable from primary colon carcinoma. ...


    pub_type: 杂志文章


    authors: Ferin P,Skucas J

    更新日期:1983-10-01 00:00:00

  • Internal derangement of the temporomandibular joint: detection by single-photon emission computed tomography. Work in progress.

    abstract::The diagnostic accuracy of both planar and single-photon emission computed tomography (SPECT) bone scintigraphy, radionuclide angiography, arthrography, and conventional radiography was evaluated in 36 patients with temporomandibular joint (TMJ) dysfunction undergoing preoperative testing. The sensitivity of SPECT bon...


    pub_type: 杂志文章


    authors: Collier BD,Carrera GF,Messer EJ,Ryan DE,Gingrass D,Angell D,Palmer DW,Isitman AT,Hellman RS

    更新日期:1983-11-01 00:00:00

  • Neodymium yttrium aluminum garnet laser treatment of hemobilia via a percutaneous biliary catheter track.

    abstract::The authors describe the use of neodymium yttrium aluminum garnet laser introduced via a percutaneous catheter track for photocoagulation of a bleeding bile duct tumor. ...


    pub_type: 杂志文章


    authors: Carpenter CM,Bowers JH,Luers PR,Dixon JA,Miller FJ

    更新日期:1983-09-01 00:00:00

  • Hypervascular hepatic metastases: CT evaluation.

    abstract::Recent reports have indicated that non-contrast material-enhanced scans are of less value than urographic contrast material-enhanced studies in the computed tomographic (CT) evaluation of hepatic metastases. The authors retrospectively reviewed the CT scans of 28 patients with hypervascular liver metastases to determi...


    pub_type: 杂志文章


    authors: Bressler EL,Alpern MB,Glazer GM,Francis IR,Ensminger WD

    更新日期:1987-01-01 00:00:00

  • Human coronary arteries: projection angiograms reconstructed from breath-hold two-dimensional MR images.

    abstract::The authors sought to render projection magnetic resonance (MR) angiograms depicting a substantial length of human coronary arteries from sequential breath-hold two-dimensional MR images. Tomographic images of the right and left anterior descending coronary arteries were collected with use of a segmented gradient-reca...


    pub_type: 杂志文章


    authors: Edelman RR,Manning WJ,Pearlman J,Li W

    更新日期:1993-06-01 00:00:00

  • An assessment of RBE of Californium-252 for C57-Black/6 mouse fibrosarcoma by a precise afterloading technique.

    abstract::Afterloading techniques were developed for the in vivo assessment of the RBE of californium-252 with respect of radium-226 using a fibrosarcoma in mice. The afterloading holder positions sources so that the tumor is uniformly irradiated. Using the end points of tumor volumetric studies up to 150 days after irradiation...


    pub_type: 杂志文章


    authors: Moser FL,Lanzi LH,Mewissen DJ,Furedi EM,Rozenfeld M

    更新日期:1975-10-01 00:00:00

  • Functional MR imaging or Wada test: which is the better predictor of individual postoperative memory outcome?

    abstract:PURPOSE:To retrospectively determine whether blood oxygen level-dependent functional magnetic resonance (MR) imaging can aid prediction of postoperative memory changes in epileptic patients after temporal lobe surgery. MATERIALS AND METHODS:This study was approved by the local ethics committee, and informed consent wa...


    pub_type: 杂志文章


    authors: Dupont S,Duron E,Samson S,Denos M,Volle E,Delmaire C,Navarro V,Chiras J,Lehéricy S,Samson Y,Baulac M

    更新日期:2010-04-01 00:00:00