Search results for "Maximum diameter"
showing 4 items of 4 documents
Variations in the size of focal nodular hyperplasia on magnetic resonance imaging
2013
Abstract Objective To evaluate the changes in the size of focal nodular hyperplasia (FNH) during long-term magnetic resonance imaging (MRI) follow-up. Material and methods We reviewed 44 FNHs in 30 patients studied with MRI with at least two MRI studies at least 12 months apart. We measured the largest diameter of the lesion (in mm) in contrast-enhanced axial images and calculated the percentage of variation as the difference between the maximum diameter in the follow-up and the maximum diameter in the initial study. We defined significant variation in size as variation greater than 20%. We also analyzed predisposing hormonal factors. Results The mean interval between the two imaging studie…
Electromagnetically generated extracorporeal shock waves for gallstone lithotripsy: in vitro experiments and clinical relevance.
1989
. First generation shock wave sources have been proved to disintegrate gallstones effectively, but they require the immersion of the patient's body in a tank of water. A recently developed second generation shock wave source (Siemens-Lithostar, Erlangen, FRG) generates shock waves electromagnetically. It presents several novel features. In particular the waterbath can be omitted and due to lower shock wave pressure general anaesthesia is not required. In vitro studies showed that 36 out of 38 gallstones (11–30 mm in diameter) could be disintegrated. Two concrements resisting lithotripsy were pure white cholesterol stones. Independent of shape, size, and composition (cholesterol or pigment) …
Intraoral Schwannomas: presentation of a series of 12 cases
2013
Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-27T11:30:51Z No. of bitstreams: 0Bitstream added on 2014-05-27T14:38:06Z : No. of bitstreams: 1 2-s2.0-84885114651.pdf: 427821 bytes, checksum: 6429b2f0fe956a3fa1d4acd1f8543e13 (MD5) Made available in DSpace on 2014-05-27T11:30:51Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-10-14 Introduction: Schwannomas are benign and not very frequent tumors of the peripheral nerves, derived from the nerve supporting Schwann cells. Study Design: Data were collected on the clinical manifestations (sex, age), location, size and symptonts of the lesions as well as the evolution time and the initial (presumption) …
Kryotherapie primärer und sekundärer Lebertumoren
2002
AIMS We assessed the morbidity, mortality and efficacy of cryotherapy for primary and secondary malignant liver tumours in a prospective case control study. METHODS Since 1996 we performed 77 cryosurgical procedures on 71 patients. 6 patients had hepatocellular carcinoma, the remainders metastases, mainly of colorectal origin (n = 49). Cryotherapy was used when a complete tumour resection was not feasible, but complete tumour destruction by cryotherapy seemed possible. Mean follow-up was 21 months. RESULTS The mean number of lesions per patient was 2.6 (1-10) with a mean maximum diameter of 3.7 cm (1-11). In 36 of 71 patients cryotherapy was used in combination with liver resection. Morbidi…