Cholelithiasis in children.

abstract：:Innovations in design of a dedicated breast scanner resulted in automation of the scanning process, the production of high resolution images of the whole breast and an efficient mode of image review. The results of clinical evaluation of the prototype of this breast scanner investigating normal breasts as well as beni...

journal_title：Radiology

authors： Maturo VG,Zusmer NR,Gilson AJ,Smoak WM,Janowitz WR,Bear BE,Goddard J,Dick DE

更新日期：1980-11-01 00:00:00

abstract：:Doppler sonography and magnetic resonance (MR) angiography were prospectively used in combination as a substitute for conventional angiography in 24 consecutive patients likely to undergo carotid endarterectomy. Of 19 patients (20 lesions) who underwent carotid endarterectomy, 18 had not undergone preoperative angiogr...

journal_title：Radiology

authors： Polak JF,Kalina P,Donaldson MC,O'Leary DH,Whittemore AD,Mannick JA

更新日期：1993-02-01 00:00:00

abstract：PURPOSE:To evaluate diagnostic performance of three nonenhanced methods: variable-refocusing-flip angle (FA) fast spin-echo (SE)-based magnetic resonance (MR) angiography (variable FA MR) and constant-refocusing-FA fast SE-based MR angiography (constant-FA MR) and flow-sensitive dephasing (FSD)-prepared steady-state fr...

journal_title：Radiology

authors： Lim RP,Fan Z,Chatterji M,Baadh A,Atanasova IP,Storey P,Kim DC,Kim S,Hodnett PA,Ahmad A,Stoffel DR,Babb JS,Adelman MA,Xu J,Li D,Lee VS

更新日期：2013-04-01 00:00:00

abstract：PURPOSE:To evaluate the effectiveness of magnetic resonance (MR) imaging for assessment of the present and extent of tumor recurrence as determined with pathologic and surgical findings. MATERIALS AND METHODS:MR findings were retrospectively examined in 37 patients with a history of cervical carcinoma. Inter- and intr...

journal_title：Radiology

authors： Weber TM,Sostman HD,Spritzer CE,Ballard RL,Meyer GA,Clark-Pearson DL,Soper JT

更新日期：1995-01-01 00:00:00

abstract：:Differentiation of osteomyelitis from cellulitis or septic arthritis can be difficult. The radiological examination often does not have the characteristic features. Seventy of 71 children with osteomyelitis had focal areas of increased radioactivity at the site of the infection. The addition of "blood pool" images aid...

journal_title：Radiology

authors： Gilday DL,Paul DJ,Paterson J

更新日期：1975-11-01 00:00:00

abstract：:A review of the sonographic findings in 17 children with non-inflammatory neck masses suggests that while ultrasound is nonspecific with regard to the differential diagnosis, it can show whether a mass is cystic, solid, or complex. Sonography is also useful in clarifying the anatomical extent of a lesion and involveme...

journal_title：Radiology

authors： Friedman AP,Haller JO,Goodman JD,Nagar H

更新日期：1983-06-01 00:00:00

abstract：PURPOSE:To investigate whether cerebral blood volume (CBV), peak height (PH), and percentage of signal intensity recovery (PSR) measurements derived from the results of T2-weighted dynamic susceptibility-weighted contrast material-enhanced (DSC) magnetic resonance (MR) imaging performed after external beam radiation th...

journal_title：Radiology

authors： Barajas RF Jr,Chang JS,Segal MR,Parsa AT,McDermott MW,Berger MS,Cha S

更新日期：2009-11-01 00:00:00

abstract：:Twenty angiographic procedures involving the superior mesenteric artery (SMA) were performed with balloon occlusion catheters in dogs with chronic liver cirrhosis and portal hypertension. The following complications were found: (a) rapid balloon inflation during angiography due to a leak between the two catheter lumen...

journal_title：Radiology

authors： Burgener FA,Gutierrez OH,Logsdon GA

更新日期：1981-09-01 00:00:00

abstract：:The most serious complication of Paget disease is the development of sarcoma. Forty-one cases of bone sarcoma in Paget disease, which represented our institution's entire experience, were reviewed. The relative frequency of sarcomatous degeneration was 0.9%. Histologically, 35 of 41 lesions were osteogenic sarcomas, a...

journal_title：Radiology

authors： Greditzer HG 3rd,McLeod RA,Unni KK,Beabout JW

更新日期：1983-02-01 00:00:00

abstract：:Sixteen of 227 patients referred for percutaneous placement of a ureteral stent had impassable stenoses. Stenoses were benign (n = 8) or attributed to malignant retroperitoneal neoplasm (n = 8). Electrocautery was used to create a neotract between the stenosed ureter and the bladder or ileal loop. A double-J stent was...

journal_title：Radiology

authors： Cornud FE,Casanova JM,Bonnel DH,Helenon OR,Hanna SM,Chretien YR,Dufour BF,Moreau JF

更新日期：1991-08-01 00:00:00

abstract：:Purpose To investigate whether whole-liver enhancing tumor burden [ETB] can serve as an imaging biomarker and help predict survival better than World Health Organization (WHO), Response Evaluation Criteria in Solid Tumors (RECIST), modified RECIST (mRECIST), and European Association for the Study of the Liver (EASL) m...

journal_title：Radiology

authors： Sahu S,Schernthaner R,Ardon R,Chapiro J,Zhao Y,Sohn JH,Fleckenstein F,Lin M,Geschwind JF,Duran R

更新日期：2017-06-01 00:00:00

abstract：:Purpose To assess the patient-dependent accuracy of atlas-based attenuation correction (ATAC) for brain positron emission tomography (PET) in an integrated time-of-flight (TOF) PET/magnetic resonance (MR) imaging system. Materials and Methods Thirty recruited patients provided informed consent in this institutional re...

journal_title：Radiology

authors： Yang J,Jian Y,Jenkins N,Behr SC,Hope TA,Larson PEZ,Vigneron D,Seo Y

更新日期：2017-07-01 00:00:00

abstract：PURPOSE:To determine the value of parenchymal findings at contrast material-enhanced spiral computed tomography (CT) in patients suspected to have pulmonary embolism (PE). MATERIALS AND METHODS:Eighty-eight patients suspected to have PE underwent contrast-enhanced spiral CT and ventilation-perfusion scintigraphy. Conc...

journal_title：Radiology

authors： Coche EE,Müller NL,Kim KI,Wiggs BR,Mayo JR

更新日期：1998-06-01 00:00:00

abstract：:Xeroradiographic evaluation of the axillary lymph nodes permits differentiation of characteristic patterns, including normal nodes and those enlarged as the result of fatty infiltration, inflammation, metastases from a breast primary, or primary nodal disease such as lymphoma or hyperplasia. The author describes his e...

journal_title：Radiology

authors： Kalisher L

更新日期：1975-04-01 00:00:00

abstract：:During a 16-year period, 42,888 clinical and radiographic breast studies were performed on 8,000 women. Of this number, 1,161 malignant and 5,270 benign lesions were histologically confirmed. Biopsy of 468 of the 721 breasts that had clustered calcifications not associated with a mass and that were subject to a five- ...

journal_title：Radiology

authors： Egan RL,McSweeney MB,Sewell CW

更新日期：1980-10-01 00:00:00

abstract：:A nodular density seen at the posterior lung base on lateral chest radiographs proved to be normal bone in the spine. This nodule results from slight thickening of the bone at the superior aspect of the area where the two laminae join to form the spinous process. ...

journal_title：Radiology

authors： Shortsleeve MJ,Foster SC

更新日期：1979-05-01 00:00:00

abstract：:Primary and secondary lung malignancies are often treated with surgery. Many patients are poor surgical candidates owing to advanced age or medical comorbidities. Alternatives to surgery for localized disease include radiation therapy and the newer treatments known as image-guided thermal ablation. Image-guided therma...

journal_title：Radiology

authors： Dupuy DE

更新日期：2011-09-01 00:00:00

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...

journal_title：Radiology

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

更新日期：1990-02-01 00:00:00

abstract：PURPOSE:To retrospectively assess endoleak shapes and locations within aneurysms to differentiate type II from type I and type III endoleaks. MATERIALS AND METHODS:The institutional review board granted an exemption for this HIPAA-compliant study; patient informed consent was not required. A retrospective review of ar...

journal_title：Radiology

authors： Chernyak V,Rozenblit AM,Patlas M,Cynamon J,Ricci ZJ,Laks MP,Veith FJ

更新日期：2006-09-01 00:00:00

abstract：:The onset of impotence was related to penile trauma in ten of 90 patients who underwent angiography. Angiographic results facilitated diagnosis in all patients. Trauma was secondary to a variety of injuries including fractures, soft-tissue perineal injuries without fractures, and repeated perineal pounding during long...

journal_title：Radiology

authors： Lurie AL,Bookstein JJ,Kessler WO

更新日期：1988-01-01 00:00:00

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 ...

journal_title：Radiology

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

abstract：:A prospective study to assess the usefulness of magnetic resonance (MR) imaging in the evaluation of endometrial carcinoma was undertaken by five institutions under the auspices of the National Cancer Institute. Six different MR imagers were used, ranging in magnetic field strength from 0.15 T to 1.5 T. For each unit,...

journal_title：Radiology

authors： Hricak H,Rubinstein LV,Gherman GM,Karstaedt N

更新日期：1991-06-01 00:00:00

abstract：:Renal allograft recipients were routinely monitored by means of duplex Doppler ultrasound. In a 20-month survey period, four instances of acute renal vein thrombosis were detected among 75 patients. All episodes occurred within the first 3 postoperative days. The examinations disclosed peaked, abruptly dropping systol...

journal_title：Radiology

authors： Reuther G,Wanjura D,Bauer H

更新日期：1989-02-01 00:00:00

abstract：:Twenty-eight patients with intra-abdominal mesenchymal sarcomas were examined with gray scale ultrasonography. Masses were present in the mesentery, abdominal hollow viscera, liver, and retroperitoneal areas. Four different ultrasonic patterns were observed in the extra hepatic abdominal masses: (a) hyperechoic masses...

journal_title：Radiology

authors： Bree RL,Green B

更新日期：1978-07-01 00:00:00

abstract：:The histological nature and angiographic characteristics of two cases of Castleman tumor support the concept that these tumors are hamartomatous. On angiography, both tumors exhibited a dense and homogeneous blush in the later phase. In one, in the mediastinum, hypertrophied branches of the bronchial artery gave rise ...

journal_title：Radiology

authors： Tuttle RJ,Shier KJ

更新日期：1979-02-01 00:00:00

abstract：:The authors report two cases of coexistent pneumomediastinum and diabetic ketoacidosis. One patient had pneumothorax as well. Hyperpnea or vomiting, or a combination of the two, may be the etiologic agent in such cases. The prognosis is excellent and there is prompt regression of the pneumomediastinum following correc...

journal_title：Radiology

authors： Toomey FB,Chinnock RF

更新日期：1975-09-01 00:00:00

abstract：:Purpose To determine the effect of radiation dose and iterative reconstruction (IR) on noise, contrast, resolution, and observer-based detectability of subtle hypoattenuating liver lesions and to estimate the dose reduction potential of the IR algorithm in question. Materials and Methods This prospective, single-cente...

journal_title：Radiology

authors： Solomon J,Marin D,Roy Choudhury K,Patel B,Samei E

更新日期：2017-09-01 00:00:00

abstract：:To reduce noise in velocity images of magnetic resonance (MR) phase-contrast measurements, the authors implemented and evaluated a pulse sequence that enables automatic optimization of the velocity-encoding parameter V(enc) for individual heart phases in pulsatile flow on the basis of a rapid prescan. This sequence wa...

journal_title：Radiology

authors： Ringgaard S,Oyre SA,Pedersen EM

更新日期：2004-07-01 00:00:00

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

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

abstract：PURPOSE:To evaluate the diagnostic accuracy of percutaneous image-guided cutting-needle biopsy of pleural thickening in the presence of a suspected malignant pleural effusion. MATERIALS AND METHODS:Thirty-three adult patients with diffuse or focal pleural thickening (median, 1.0 cm; range, 0.2-6.0 cm), pleural effusio...

journal_title：Radiology

authors： Adams RF,Gleeson FV

更新日期：2001-05-01 00:00:00