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3081. Imaging of breast cancer diagnosed and treated with chemotherapy during pregnancy. (PubMed)

of informed consent was obtained. The study was approved by an institutional review board and was HIPAA compliant. Mammograms and sonograms were reviewed by two mammographers using the Breast Imaging Reporting and Data System (BI-RADS) mammographic and US lexicon. US assessment of the regional lymph node basins, including the axillary, infraclavicular, internal mammary, and supraclavicular regions, was documented. US was used to evaluate response to therapy in the breast and the regional lymph nodes

2006 Radiology

3082. Hepatocellular carcinoma: microwave ablation with multiple straight and loop antenna clusters--pilot comparison with pathologic findings. (PubMed)

Hepatocellular carcinoma: microwave ablation with multiple straight and loop antenna clusters--pilot comparison with pathologic findings. The purpose of this study was to evaluate the clinical implementation of triangular and spherical designs for simultaneous multiple-antenna ablation of human hepatocellular carcinoma (HCC) with a recently engineered microwave coagulation system. Institutional review board approval and informed consent were obtained, and the study was compliant with HIPAA

2006 Radiology

3083. Pulsed high-intensity focused ultrasound enhances thrombolysis in an in vitro model. (PubMed)

Pulsed high-intensity focused ultrasound enhances thrombolysis in an in vitro model. To evaluate the use of pulsed high-intensity focused ultrasound exposures to improve tissue plasminogen activator (tPA)-mediated thrombolysis in an in vitro model.All experimental work was compliant with institutional guidelines and HIPAA. Clots were formed by placing 1 mL of human blood in closed-off sections of pediatric Penrose tubes. Four experimental groups were evaluated: control (nontreated) clots, clots

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2006 Radiology

3084. Screening mammography: do women prefer a higher recall rate given the possibility of earlier detection of cancer? (PubMed)

Screening mammography: do women prefer a higher recall rate given the possibility of earlier detection of cancer? To prospectively survey women undergoing screening mammography to assess their attitudes toward and preference for the level of recall rates given the possibility that an increase in recall rates may result in earlier detection of cancer.This HIPAA-compliant survey was performed with an institutional review board-approved protocol. Women who arrived for their routine screening

2006 Radiology

3085. MR imaging evaluation of acute appendicitis in pregnancy. (PubMed)

MR imaging evaluation of acute appendicitis in pregnancy. To retrospectively assess the diagnostic performance of magnetic resonance (MR) imaging in pregnant patients suspected of having acute appendicitis.The study was approved by the committee on clinical investigations and was HIPAA compliant. The informed consent requirement was waived. MR images were obtained in 51 consecutive pregnant patients (mean age, 28.3 years) who were clinically suspected of having acute appendicitis

2006 Radiology

3086. Adrenal lesions: characterization with fused PET/CT image in patients with proved or suspected malignancy--initial experience. (PubMed)

Adrenal lesions: characterization with fused PET/CT image in patients with proved or suspected malignancy--initial experience. To retrospectively evaluate the accuracy of the fused positron emission tomographic (PET)/computed tomographic (CT) image for characterization of adrenal lesions in patients who have proved malignancy or are suspected of having malignancy.Institutional review board approval was received for this retrospective HIPAA-compliant study, and informed consent was waived. Forty

2006 Radiology

3087. PET with FDG-labeled leukocytes versus scintigraphy with 111In-oxine-labeled leukocytes for detection of infection. (PubMed)

PET with FDG-labeled leukocytes versus scintigraphy with 111In-oxine-labeled leukocytes for detection of infection. To compare prospectively the accuracy of positron emission tomography (PET) with leukocytes labeled in vitro with (18)F fluorodeoxyglucose (FDG) versus that of conventional scintigraphy with leukocytes labeled in vitro with (111)In oxine in patients suspected of having infection.This HIPAA-compliant study had institutional review board approval; informed consent was obtained from

2006 Radiology

3088. Fetal posterior fossa volume: assessment with MR imaging. (PubMed)

Fetal posterior fossa volume: assessment with MR imaging. To retrospectively determine the relationship between posterior fossa volume (PFV) and estimated gestational age (EGA) and/or femur length (FL) during pregnancy for the purpose of developing a normal growth curve.Advance institutional review board approval was obtained for this HIPAA-compliant study, and the need for parent informed consent was waived. A cross-sectional retrospective study was performed to measure PFV on in vivo magnetic

2006 Radiology

3089. Artificial multiple sclerosis lesions on simulated FLAIR brain MR images: echo time and observer performance in detection. (PubMed)

Artificial multiple sclerosis lesions on simulated FLAIR brain MR images: echo time and observer performance in detection. The institutional review board approved the described HIPAA-compliant study, which was performed to prospectively evaluate observer performance in the detection of artificial multiple sclerosis (MS) lesions that were randomly distributed supra- and infratentorially on simulated fluid-attenuated inversion-recovery (FLAIR) magnetic resonance (MR) images obtained at different

2006 Radiology

3090. Sclerosis of the pterygoid process in untreated patients with nasopharyngeal carcinoma. (PubMed)

Sclerosis of the pterygoid process in untreated patients with nasopharyngeal carcinoma. To retrospectively evaluate the prevalence of pterygoid process sclerosis in patients with untreated nasopharyngeal carcinoma.This retrospective HIPAA-compliant study was performed after the institutional review board deemed it to be exempt from review and patient informed consent. Contrast material-enhanced computed tomographic (CT) scans of the neck obtained in 31 patients (22 men, nine women; mean age, 42

2006 Radiology

3091. Comparison of manual and automatic section positioning of brain MR images. (PubMed)

Comparison of manual and automatic section positioning of brain MR images. The study protocol was approved by the institutional review board and was in full compliance with HIPAA guidelines. Informed consent was obtained from all patients. The purpose of this study was to prospectively compare intra- and intersubject variability of manual versus automatic magnetic resonance (MR) imaging section prescription. In two examinations, T2-weighted series were acquired with both methods. All

2006 Radiology

3092. Causes of errors in polyp detection at air-contrast barium enema examination. (PubMed)

Causes of errors in polyp detection at air-contrast barium enema examination. To retrospectively determine the cause of errors in air-contrast barium enema (ACBE) examination for detection of polyps 6 mm or larger.The study had institutional review board approval. Informed consent was waived for this HIPAA-compliant study. ABCE findings in 41 subjects with 56 missed polyps were evaluated by two radiologists to determine if the cause of errors was perceptual or technical. A comparison was made

2006 Radiology

3093. Shoulder impingement: objective 3D shape analysis of acromial morphologic features. (PubMed)

Shoulder impingement: objective 3D shape analysis of acromial morphologic features. To retrospectively and quantitatively analyze the acromial undersurface in three dimensions and to determine its association with impingement syndrome and rotator cuff tears.Institutional review board approval was received with exemption of informed consent for this retrospective HIPAA-compliant study. Magnetic resonance images were evaluated in 84 patients (63 males, 21 females; mean age, 42.6 years; age range

2006 Radiology

3094. Breast microcalcifications: retrieval failure at prone stereotactic core and vacuum breast biopsy--frequency, causes, and outcome. (PubMed)

Breast microcalcifications: retrieval failure at prone stereotactic core and vacuum breast biopsy--frequency, causes, and outcome. To retrospectively determine the frequency and causes of failure to retrieve microcalcifications in nonpalpable lesions, as judged on a radiograph of the specimen, and to determine outcome in patients with those lesions.Informed consent was obtained from each patient prior to biopsy. The institutional review board approved this HIPAA-compliant study and granted

2006 Radiology

3095. Tagging-based, electronically cleansed CT colonography: evaluation of patient comfort and image readability. (PubMed)

among the noncathartic and cathartic cohorts were compared with nonparametric analysis of variance, the Fisher exact test, and the F test, as appropriate. The study was HIPAA compliant.Study subjects who received tagging preparations reported significantly improved discomfort scores when compared with those of the control subjects (P < .05, each comparison). There was no significant difference in discomfort scores among groups 1, 2, and 3. For each reader, scores of subtracted image readability were

2006 Radiology

3096. Odontogenic orbital inflammation: clinical and CT findings--initial observations. (PubMed)

Odontogenic orbital inflammation: clinical and CT findings--initial observations. To retrospectively review computed tomographic (CT) and clinical findings in patients with odontogenic orbital infection.Approval from the institutional review board was obtained for chart and scan review, and informed consent was waived for this HIPAA-compliant study. Five patients, two male and three female (median age, 37 years; age range, 13-55 years), who had odontogenic orbital cellulitis underwent clinical

2006 Radiology

3097. Parkinson disease: pattern of functional MR imaging activation during deep brain stimulation of subthalamic nucleus--initial experience. (PubMed)

in the study, and the study protocol was approved by the institutional review board at the Cleveland Clinic Foundation and was HIPAA compliant. After extensive phantom safety testing of DBS lead systems, five patients (three men, two women; mean age, 49.4 years +/- 14.5 [standard deviation]; range, 31-74 years) with percutaneously extended bilateral DBS electrodes placed in the STN for treatment of Parkinson disease were examined at 3 T on the 1st or 2nd postoperative day. Imaging consisted of a three

2006 Radiology

3098. Accuracy of stepping-table lower extremity MR angiography with dual-level bolus timing and separate calf acquisition: hybrid peripheral MR angiography. (PubMed)

for the Protection of Research Subjects. Informed consent was waived for this HIPAA-compliant study. One hundred twenty-one consecutive patients (67 men: mean age, 66 years +/- 12 [standard deviation]; 54 women: mean age, 69 years +/- 14), who were referred for evaluation of peripheral vascular disease, underwent peripheral contrast material-enhanced MR angiography. By using a hybrid technique, two independent timing measurements were performed in the pelvis and calves followed by MR angiography of the calves

2006 Radiology

3099. CT colonography: influence of 3D viewing and polyp candidate features on interpretation with computer-aided detection. (PubMed)

review board approval and informed consent were obtained; this study was HIPAA compliant. Forty-seven computed tomographic (CT) colonography data sets were obtained in 26 men and 10 women (age range, 42-76 years). Four radiologists classified 705 polyp candidates (53 TP candidates, 652 FP candidates) identified with CAD; initially, only two-dimensional images were used, but these were later supplemented with 3D rendering. Another radiologist unblinded to colonoscopy findings characterized

2006 Radiology

3100. 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

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