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3101. Limbic tract anomalies in pediatric myelomeningocele and Chiari II malformation: anatomic correlations with memory and learning--initial investigation. (PubMed)

Limbic tract anomalies in pediatric myelomeningocele and Chiari II malformation: anatomic correlations with memory and learning--initial investigation. To prospectively determine anomalies of limbic tracts and to describe the relationship between these anomalies, seen on diffusion-tensor magnetic resonance (MR) and fiber tract (FT) reconstruction images, and learning and memory in children with myelomeningocele (MM) and Chiari II malformation.The investigation was HIPAA compliant and approved

2006 Radiology

3102. Contrast-enhanced MR angiography of the peripheral vasculature with a continuously moving table and modified elliptical centric acquisition. (PubMed)

Contrast-enhanced MR angiography of the peripheral vasculature with a continuously moving table and modified elliptical centric acquisition. This study was approved by the institutional review board and was HIPAA compliant. All subjects provided written informed consent, and subject confidentiality was protected. The purpose of this study was to prospectively evaluate the feasibility of integrating a modified elliptical centric (EC) acquisition with a continuously moving table technique

2006 Radiology

3103. Uterine leiomyomas: MR imaging-based thermometry and thermal dosimetry during focused ultrasound thermal ablation. (PubMed)

Uterine leiomyomas: MR imaging-based thermometry and thermal dosimetry during focused ultrasound thermal ablation. To retrospectively evaluate magnetic resonance (MR) imaging-based thermometry and thermal dosimetry during focused ultrasound treatments of uterine leiomyomas (ie, fibroids).All patients gave written informed consent for the focused ultrasound treatments and the current HIPAA-compliant retrospective study, both of which were institutional review board approved. Thermometry

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2006 Radiology

3104. Outcomes of tracheobronchial stent placement for benign disease. (PubMed)

Outcomes of tracheobronchial stent placement for benign disease. To retrospectively determine long-term outcomes in patients who have undergone tracheobronchial stent placement for benign diseases.Institutional Review Board approval was obtained for this retrospective HIPAA-compliant study, with waiver of informed consent. Forty patients (22 female, 18 male; mean age, 52.0 years) who were treated with metallic airway stents for benign stenosis were identified from an interventional radiology

2006 Radiology

3105. Breast masses: computer-aided diagnosis with serial mammograms. (PubMed)

was waived for this HIPAA-compliant retrospective study. Ninety temporal pairs of two-view serial mammograms (depicting 47 malignant and 43 benign biopsy-proved masses) were obtained from 68 patient files and were digitized. Biopsy was the reference standard. Eight Mammography Quality Standards Act of 1992-accredited radiologists and two breast imaging fellows assessed digitized two-view temporal pairs (in preselected regions of interest only) by estimating likelihood of malignancy and Breast Imaging

2006 Radiology

3106. Relapsing polychondritis: prevalence of expiratory CT airway abnormalities. (PubMed)

for this retrospective HIPAA-compliant study. A computerized hospital information system was used to identify all patients with clinically diagnosed or biopsy-proved relapsing polychondritis who were referred for CT airway imaging during a 17-month period. The study cohort comprised 18 patients (15 women, three men; mean age, 47 years; age range, 20-71 years). Multidetector helical CT was performed in all patients by using a standard protocol, which included end-inspiratory and dynamic expiratory volumetric imaging

2006 Radiology

3107. Articular cartilage of the knee: rapid three-dimensional MR imaging at 3.0 T with IDEAL balanced steady-state free precession--initial experience. (PubMed)

Articular cartilage of the knee: rapid three-dimensional MR imaging at 3.0 T with IDEAL balanced steady-state free precession--initial experience. Institutional review board approval and informed consent were obtained for this HIPAA-compliant study. In this study, iterative decomposition of water and fat with echo asymmetry and least-squares estimation (IDEAL) balanced steady-state free precession (bSSFP), fat-suppressed bSSFP, and fat-suppressed spoiled gradient-echo (GRE) sequences for 3.0-T

2006 Radiology

3108. Adrenal lesions: attenuation measurement differences between CT scanners. (PubMed)

Adrenal lesions: attenuation measurement differences between CT scanners. To retrospectively compare unenhanced computed tomographic scans of the same adrenal lesion obtained with two different manufacturers' multidetector scanners to assess whether there are differences in attenuation measurements.The study was approved by the local ethical committee, which waived patient consent, and was conducted in compliance with HIPAA. Electronic searching revealed patients with adrenal nodules scanned

2006 Radiology

3109. Virtual autopsy: preliminary experience in high-velocity gunshot wound victims. (PubMed)

Virtual autopsy: preliminary experience in high-velocity gunshot wound victims. To retrospectively assess virtual autopsy performed with multidetector computed tomography (CT) for the forensic evaluation of gunshot wound victims.The institutional review board approved this HIPAA-compliant study and did not require informed consent of the next of kin. Thirteen consecutive male gunshot wound victims (mean age, 27 years) were scanned with 16-section multidetector CT prior to routine autopsy

2006 Radiology

3110. Effect of obesity on image quality: fifteen-year longitudinal study for evaluation of dictated radiology reports. (PubMed)

Effect of obesity on image quality: fifteen-year longitudinal study for evaluation of dictated radiology reports. To retrospectively assess the effect of obesity on image quality, as determined from dictated radiology reports filed between 1989 and 2003.Institutional review board approval was obtained for this HIPAA-compliant study; informed consent was not required. Electronic records were searched for radiology reports with the phrase "limited due to body habitus" (hereafter, "habitus limited

2006 Radiology

3111. Pulmonary circulation: contrast-enhanced 3.0-T MR angiography--initial results. (PubMed)

Pulmonary circulation: contrast-enhanced 3.0-T MR angiography--initial results. To prospectively evaluate the technical feasibility of both high-spatial-resolution and time-resolved contrast material-enhanced magnetic resonance (MR) angiography of the pulmonary circulation at 3.0 T.All examinations were HIPAA compliant. After institutional review board approval and written informed consent, time-resolved and high-spatial-resolution three-dimensional contrast-enhanced MR angiography

2006 Radiology

3112. Optimization of multiplanar reformations from isotropic data sets acquired with 16-detector row helical CT scanner. (PubMed)

Optimization of multiplanar reformations from isotropic data sets acquired with 16-detector row helical CT scanner. Institutional review board approval and waiver of consent were obtained for the patient component of this retrospective HIPAA-compliant study. By using an anthropomorphic phantom and metal oxide semiconductor field effect transistor detectors, radiation dose was determined for one eight-detector row and two 16-detector row computed tomographic (CT) protocols. A custom phantom

2006 Radiology

3113. Carotid artery stent implantation: evaluation with multi-detector row CT angiography and virtual angioscopy--initial experience. (PubMed)

Carotid artery stent implantation: evaluation with multi-detector row CT angiography and virtual angioscopy--initial experience. Approval for this HIPAA-compliant study was obtained from the institutional review board; informed consent was not required for retrospective review of patient studies that had been performed for clinical evaluation. The purpose of this study was to retrospectively compare the accuracy of intrastent luminal diameter, as measured on transverse computed tomographic (CT

2006 Radiology

3114. Low-grade gliomas: dynamic susceptibility-weighted contrast-enhanced perfusion MR imaging--prediction of patient clinical response. (PubMed)

Low-grade gliomas: dynamic susceptibility-weighted contrast-enhanced perfusion MR imaging--prediction of patient clinical response. To determine retrospectively whether relative cerebral blood volume (CBV) measurements can be used to predict clinical response in patients with low-grade gliomas.Approval for this retrospective HIPAA-compliant study was obtained from the Institutional Board of Research Associates, with waiver of informed consent. Thirty-five patients (23 male and 12 female

2006 Radiology

3115. Papillary lesions of the breast at percutaneous core-needle biopsy. (PubMed)

Papillary lesions of the breast at percutaneous core-needle biopsy. To retrospectively review the imaging and histologic findings in patients in whom a benign papillary lesion was diagnosed at core-needle breast biopsy.This retrospective study was approved by the institutional review board at each institution; patient consent was not required. The study was HIPAA compliant. The authors reviewed the findings from 42 patients (age range, 26-76 years; mean age, 54.3 years) with 43 benign papillary

2006 Radiology

3116. Radiation doses from venous access procedures. (PubMed)

Radiation doses from venous access procedures. To retrospectively analyze radiation dose data for six common venous access procedures.Institutional review board approval was obtained for this HIPAA-compliant study; informed consent was not required. Data review was limited to a quality assurance database. Patient medical records were not reviewed. We retrospectively analyzed radiation dose data from a prospective quality assurance program. Dose data were analyzed for 1010 instances of six

2006 Radiology

3117. Superior semicircular canal dehiscence: oblique reformatted CT images for diagnosis. (PubMed)

was maintained, and the study was HIPAA compliant. Twenty-seven patients (17 men, 10 women; average age, 45 years; range, 19-72 years) suspected of having SSCD who underwent temporal bone multi-detector row CT were retrospectively identified from electronic medical records. An additional 27 control subjects (nine men, 18 women; average age, 50 years; range, 18-87 years), who underwent temporal bone multi-detector row CT for other reasons, were retrospectively selected from the same period. Two

2006 Radiology

3118. Subchondral bone marrow edema in patients with degeneration of the articular cartilage of the knee joint. (PubMed)

Subchondral bone marrow edema in patients with degeneration of the articular cartilage of the knee joint. To retrospectively determine at magnetic resonance (MR) imaging the prevalence of subchondral bone marrow edema beneath arthroscopically proved articular cartilage defects.The study was performed in compliance with HIPAA regulations, and a waiver of informed consent was obtained from the institutional review board before the study was performed. The study consisted of 132 patients (70 men

2006 Radiology

3119. Asymptomatic central venous stenosis in hemodialysis patients. (PubMed)

Asymptomatic central venous stenosis in hemodialysis patients. To retrospectively evaluate the natural history of high-grade (>50%) asymptomatic central venous stenosis (CVS) in hemodialysis patients and the outcome of serial treatment of CVS with percutaneous transluminal angioplasty (PTA).The institutional review board granted exemption for this retrospective study, the need for informed consent was waived, and all data collection was in compliance with HIPAA. Patients with hemodialysis

2006 Radiology

3120. Three-dimensional US of the fetus: volume imaging. (PubMed)

Three-dimensional US of the fetus: volume imaging. To retrospectively compare the rapidity, efficiency, and accuracy of three-dimensional (3D) and two-dimensional (2D) ultrasonography (US) for complete anatomic survey in fetuses at 17-21 weeks of gestation.Institutional review board approval was obtained, informed consent was waived, and the study was HIPAA compliant. Fifty consecutive women undergoing fetal anatomic survey at 17-21 weeks of gestation formed the study cohort. After standard 2D

2006 Radiology

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