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PURPOSE To evaluate the midterm results of limited embolization of the uterine arteries in the management of symptomatic uterine fibroids and to evaluate the efficacy and safety of limited uterine artery embolization (UAE) with use of calibrated tris-acryl gelatin microspheres in the management of symptomatic uterine fibroids. MATERIALS AND METHODS Twenty(More)
PURPOSE To compare the effects on the myometrium of polyvinyl alcohol (PVA) particles and calibrated microspheres (MS) in embolization of the uterine arteries in sheep. MATERIALS AND METHODS Superselective and bilateral embolization of the uterine arteries was performed with PVA particles and calibrated MS within 24 hours after artificial ovulation in 26(More)
Embolization was used to reduce the size of brain arteriovenous malformations (AVMs) prior to radiosurgical treatment in 125 patients who were poor surgical candidates or had refused surgery. Of these patients, 81% had suffered hemorrhage, and 22.4% had undergone treatment at another institution. According to the Spetzler-Martin scale, the AVMs were Grade(More)
OBJECTIVE The objective of this study was to compare the repartition in the renal arterial vasculature of tris-acryl gelatin microspheres (TGMS) and polyvinyl alcohol microspheres (PVAMS) of 3 calibers (500-700, 700-900, and 900-1200 microm). MATERIALS AND METHODS Twelve kidneys from 6 adult sheep were embolized and histologically analyzed. The number and(More)
  • A Laurent
  • 2007
Last years, calibrated microspheres have proven their superiority in targeting embolization over non spherical particles in many applications. For the very near future they represent the best tool for controlling drug delivery in chemoembolization, under the two conditions that they would be image detectable and that the "dosimetry" would be tailored to(More)
PURPOSE To prospectively evaluate the midterm results of uterine artery embolization for symptomatic adenomyosis. MATERIALS AND METHODS The study protocol was approved by the institutional review board, and all participants gave written informed consent. Eighteen women (mean age, 44.3 years) with symptomatic adenomyosis were treated with bilateral(More)
Embolization has become a first-line treatment for symptomatic uterine fibroid tumors. Selective catheterization and embolization of both uterine arteries, which are the predominant source of blood flow to fibroid tumors in most cases, is the cornerstone of treatment. Although embolization for treatment of uterine fibroid tumors is widely accepted, great(More)
The purpose of this study was to compare, after embolization, the distribution in the uterine arterial vasculature of tris-acryl gelatin microspheres (TGMS) and polyvinyl alcohol microspheres (PVAMS). A limited bilateral uterine artery embolization was performed in six adult sheep under fluoroscopic control by injecting in each uterine artery 0.25 ml of(More)
PURPOSE To evaluate (i). the presence and number of calibrated tris-acryl gelatin microspheres (TGMS) in targeted organs after embolization of tumors or arteriovenous malformations (AVMs) and (ii). the possible correlations among the size of TGMS used for embolization, the size of TGMS found in specimens, and the size of the occluded vessels. MATERIALS(More)
The present study deals with the synthesis and characterization of radiopaque polymers which could, when solubilized in an appropriate water-miscible solvent, be useful embolic materials for the treatment of cerebral aneurysms and arteriovenous malformations. For this purpose cellulose (both microcrystalline and powdered) and partially substituted cellulose(More)