Arash Ehteshami Rad

• University of Missouri

Background and purpose: Severe, immediate postprocedural pain and the need for analgesics after vertebroplasty can be a discouraging experience for patients and caregivers. The goal of this study was to investigate whether the presence of severe pain immediately after vertebroplasty predicts short- and long-term pain relief. Materials and methods...

Introduction: Previous studies have noted formation of saccular aneurysms along the distal basilar artery/P1 segments after carotid ligation in rabbits. In this prospective study we employed MICROFIL®, a polymer, which was used to fill the entire arterial tree, to examine the incidence of microaneurysm formation following right common carotid arte...

To determine the impact of cement placement immediately adjacent to and through the endplate during percutaneous vertebroplasty on postprocedural pain and subsequent fracture rate. Institutional review board approval with waived consent was obtained. Medical records of 424 patients undergoing first-time, single-level vertebroplasty for osteoporotic...

Reported incidence of extravertebral cement leakage after vertebroplasty varies widely across studies. To retrospectively compare the relative detection rates of extravertebral leakage noted under intra-procedural fluoroscopic surveillance, postprocedure plain radiographs, and postprocedure computed tomography (CT) in a cohort of patients undergoin...

The Hirsch Index (H index) is widely applied as a metric of scientific productivity. The purpose of this study was to evaluate the role of self-citation on the H index in academic radiology. Through the National Resident Matching Program's Web site, one third (47/139) of radiology residency programs were selected randomly. All chairpersons and full...

The safety of placing multiple overlapped endoluminal flow diverters remains unclear because small eloquent branch arteries theoretically could become occluded by these devices. We placed single and multiple flow diverters over small branch arteries in rabbit aortas to determine the incidence of branch artery occlusion. Flow diverters (PED) were pl...

Increased mobility and physical activity after successful vertebral augmentation procedure might increase the risk of new-onset fractures. To determine whether new-onset fracture following vertebroplasty is associated with specific type of physical activity. A total of 107 patients underwent at least two procedures of percutaneous vertebroplasty. A...

Most physicians consider length of preoperative pain as an important factor to include patients for SA. Our aim was to synthesize the available evidence regarding the influence of preprocedural pain duration on the outcome of vertebral augmentation procedures. The MEDLINE data base was reviewed up to March 2010. Meta-regression and mixed-effect sub...

The duration of the fracture is considered by many practitioners to be an important predictor of outcome following vertebroplasty. We sought to define the impact of preprocedural pain duration on outcomes, including pain relief, improvement in function, and medication usage among patients treated with single-level vertebroplasty. Institutional revi...

A positive correlation between HCT and CT attenuation of intravascular blood has long been assumed but has never been established by using substantial patient numbers and modern CT equipment. The purpose of this study was to determine whether apparent increased attenuation on CT in cerebral venous sinuses can be attributed to hemoconcentration alon...

The decision regarding whether or not to retreat a previously treated aneurysm not only directly impacts patient care but also serves as a primary outcome measure in numerous, leading randomized controlled trials of modified coils. Our aim was to determine the degree of interobserver variability regarding the need and type of treatment for recurren...

Cement PE represents a potentially serious complication following vertebroplasty. To determine the frequency and extent of cement PE during percutaneous vertebroplasty, we performed a retrospective review of chest CT scans obtained in patients who had previously undergone ≥1 vertebroplasty procedure. After approval by our local institutional review...

First- and second-rib fractures diagnosed on plain radiographs have been associated with traumatic aortic injury. We examined whether such fractures diagnosed on computed tomography (CT), which is of greater sensitivity than plain radiograms for rib fractures, are associated with traumatic vascular injury. We identified 1,894 patients who had under...

The h index is a recently developed tool to assess the impact of an author's publications. The purpose of this study was to apply and evaluate the h indexes of US academic radiologists. Radiology programs that participated in the residency match in 2009 were identified through the National Resident Matching Program's Web site. One third of programs...

To determine whether vertebroplasty increases the risk of new (ie, incident) vertebral fractures by comparing the rates of incident fractures among a group of patients with painful vertebral fractures who did not undergo vertebroplasty with a group of patients who did. A retrospective chart review was performed to identify new-onset fractures after...

Intravertebral clefts are considered markers for osteonecrosis. We tested the hypothesis that bisphosphonate therapy was associated with vertebral osteonecrosis. A retrospective review of a vertebroplasty database was performed. Exposure to, duration of, and type of bisphosphonate therapy was documented. Radiographs were reviewed to identify intrav...

Vertebroplasty has been commonly used for the treatment of vertebral compression fractures. Practitioners usually attempt to maximize filling of the vertebral body with polymethylmethacrylate (PMMA), either by using a bipediculate approach with separate infusions in both hemivertebrae or by using a unipediculate approach with central needle placeme...

PURPOSE MRI is used routinely as a part of the pre-operative evaluation for performing vertebroplasty, but, to our knowledge, its utility has never previously been rigorously evaluated. We performed a retrospective study in an effort to quantify the added value over plain radiographs of routine MRI imaging prior to vertebroplasty. METHOD AND MATER...

Limited data exists regarding the efficacy of percutaneous vertebroplasty for multiple synchronous and metachronous vertebral compression fractures. The purpose of this study was to evaluate whether the number of vertebral levels treated during percutaneous vertebroplasty procedures or the number of separate vertebroplasty procedures performed on a...

Focal point tenderness over the fractured level is believed to be a necessary criterion for performing vertebroplasty. The purpose of this study was to explore whether the presence of focal-point tenderness over a fracture treated with vertebroplasty predicts superior clinical outcome as compared with outcomes in patients without such tenderness. I...

We report a small cohort of patients with severe osteoporotic fractures treated with vertebroplasty. We note a high prevalence of small, central, intraosseous clefts in these severe fractures. Rather than filling the small amount of residual bone marrow around the periphery of these severe fractures, as suggested by previous authors, we suggest cen...