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3101. Lateral meniscus root tear and meniscus extrusion with anterior cruciate ligament tear. (PubMed)

Lateral meniscus root tear and meniscus extrusion with anterior cruciate ligament tear. To retrospectively determine the prevalence of posterior lateral meniscus root tears (LMRTs), as depicted on magnetic resonance (MR) images, in patients with an anterior cruciate ligament (ACL) tear and to investigate the association of LMRTs with lateral meniscus extrusion and other ligament injuries.Institutional review board approval was obtained; informed consent was not required. This study was HIPAA

2006 Radiology

3102. Early emphysematous changes in asymptomatic smokers: detection with 3He MR imaging. (PubMed)

Early emphysematous changes in asymptomatic smokers: detection with 3He MR imaging. To prospectively compare apparent diffusion coefficient (ADC) measurements derived from diffusion-weighted hyperpolarized helium 3 (3He) magnetic resonance (MR) imaging with functional and structural findings using spirometric tests and thin-section computed tomography (CT) of the lungs in asymptomatic smokers and healthy nonsmokers of similar age.All studies were HIPAA compliant and were approved

2006 Radiology

3103. Evaluation of living renal donors: accuracy of three-dimensional 16-section CT. (PubMed)

Evaluation of living renal donors: accuracy of three-dimensional 16-section CT. To retrospectively assess the sensitivity and specificity of three-dimensional (3D) 16-section computed tomography (CT) in the evaluation of vessels, pelvicalyceal system, and ureters in living renal donors, with surgical findings as the reference standard.This was a HIPAA-compliant study. Institutional review board approval was obtained for the review of subjects' medical records and data analysis, with waiver

2006 Radiology

3104. Diagnostic performance of stress perfusion and delayed-enhancement MR imaging in patients with coronary artery disease. (PubMed)

as the reference standard.The committee on human research approved the study protocol, and all participants gave written informed consent. This study was HIPAA compliant. Forty-seven patients (38 men and nine women; mean age, 63 years +/- 5.3 [standard deviation]) scheduled for coronary angiography were prospectively enrolled: 33 were suspected of having CAD (group A) and 14 had experienced a previous myocardial infarction and were suspected of having new lesions (group B). The MR imaging protocol included

2006 Radiology

3105. Assessment of cardiovascular risk status at CT colonography. (PubMed)

Assessment of cardiovascular risk status at CT colonography. To retrospectively determine whether calcium scores of the abdominal aorta obtained during computed tomographic (CT) colonography relate to Framingham risk factors and clinical cardiac events.The institutional review board approved the current HIPAA-compliant retrospective study and waived informed consent. Between 1995 and 1998, 480 patients underwent CT colonography; 467 patients were available for assessment. Calcium scores

2006 Radiology

3106. MR imaging features of radial tunnel syndrome: initial experience. (PubMed)

MR imaging features of radial tunnel syndrome: initial experience. To retrospectively assess magnetic resonance (MR) imaging features of radial tunnel syndrome.Institutional review board approval was obtained, and informed consent was waived for the retrospective HIPAA-compliant study. MR images of 10 asymptomatic volunteers (six men, four women; mean age, 30 years) and 25 patients (11 men, 14 women; mean age, 49 years) clinically suspected of having radial tunnel syndrome were reviewed

2006 Radiology

3107. Fetal lung volume measurements: determination with MR imaging--effect of various factors. (PubMed)

, and the conduct of this study was HIPAA compliant. FLV was measured in 30 fetuses (GA, 17-36 weeks) referred for MR imaging for indications other than pulmonary abnormalities. Measurements were made on single-shot fast spin-echo images by tracing free-form regions of interest on individual consecutive sections in the transverse, sagittal, and coronal planes. Measurements were performed twice by two observers independently. Correlations between FLV and GA, imaging plane, and section thickness were assessed

2006 Radiology

3108. 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

3109. 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

3110. 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

3111. 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

3112. 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

3113. 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

3114. 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

3115. 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

3116. 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

3117. 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

3118. 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

3119. 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

3120. 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

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