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3121. CT Screening for lung cancer: diagnoses resulting from the New York Early Lung Cancer Action Project. Full Text available with Trip Pro

CT Screening for lung cancer: diagnoses resulting from the New York Early Lung Cancer Action Project. To evaluate prospectively the diagnostic performance of the New York Early Lung Cancer Action Project (NY-ELCAP) regimen in the diagnosis of early lung cancer at baseline and annual repeat computed tomographic (CT) screenings.Informed consent and institutional review board approval were obtained for this HIPAA-compliant study of baseline and annual repeat low-dose CT screening performed

2007 Radiology

3122. Pulmonary radiofrequency ablation: long-term safety and efficacy in 153 patients. (Abstract)

Pulmonary radiofrequency ablation: long-term safety and efficacy in 153 patients. To retrospectively evaluate long-term survival, local tumor progression, and complication rates for all percutaneous computed tomographic (CT)-guided lung tumor radiofrequency (RF) ablations performed at a tertiary care cancer hospital in patients who refused or who were not candidates for surgery.This HIPAA-compliant study was approved by the institutional review board; informed consent was waived. Between 1998

2007 Radiology

3123. Electromagnetic breast imaging: results of a pilot study in women with abnormal mammograms. Full Text available with Trip Pro

Electromagnetic breast imaging: results of a pilot study in women with abnormal mammograms. To prospectively assess quantitatively the inherent contrast of electromagnetic (EM) properties that can be imaged by using available technology in women with abnormal findings at conventional breast imaging who underwent subsequent biopsy.The protocol was HIPAA compliant and approved by the institutional review board. All participants provided informed consent. Fifty-three women with normal (Breast

2007 Radiology

3124. Atypical chest pain: coronary, aortic, and pulmonary vasculature enhancement at biphasic single-injection 64-section CT angiography. (Abstract)

approval and HIPAA compliance, 50 patients (16 men, 34 women; mean age, 51.5 years; range, 30-75 years) with atypical chest pain were referred from the emergency department and were imaged with a 64-section CT scanner after premedication with oral atenolol and/or intravenous metoprolol. Thoracic CT angiography with retrospective gating was subsequently performed with a single biphasic injection of 130 mL of iso-osmolar contrast material (100 mL at 5 mL/sec and 30 mL at 3 mL/sec) in caudal-to-cranial

2007 Radiology

3125. Uterine leiomyomas: MR imaging-guided focused ultrasound surgery--results of different treatment protocols. Full Text available with Trip Pro

Uterine leiomyomas: MR imaging-guided focused ultrasound surgery--results of different treatment protocols. To prospectively assess patient response (after 12 months) to magnetic resonance (MR) imaging-guided focused ultrasound surgery in treatment of uterine leiomyomas by using two treatment protocols.This prospective clinical trial was approved by institutional review boards and was HIPAA compliant. After giving informed consent, patients with symptomatic leiomyomas were consecutively

2007 Radiology

3126. Significant coronary artery stenosis: comparison on per-patient and per-vessel or per-segment basis at 64-section CT angiography. Full Text available with Trip Pro

Significant coronary artery stenosis: comparison on per-patient and per-vessel or per-segment basis at 64-section CT angiography. To prospectively evaluate the accuracy of 64-section computed tomographic (CT) coronary angiography for assessing significant stenosis on a global and segmental level, by using conventional coronary artery angiography as the reference standard.This study was HIPAA compliant and had local institutional review board approval. Patients gave informed consent. Patients

2007 Radiology

3127. CT colonography: false-negative interpretations. (Abstract)

CT colonography: false-negative interpretations. To retrospectively evaluate if false-negative interpretations at computed tomographic (CT) colonography are due to observer error.This study was HIPAA compliant and had institutional review board approval, with waiver of informed consent. An initial unblinded review of CT colonographic image data was used to generate reconciliation reports for all false-negative polyp candidates 6.0 mm or larger. These findings were then verified by two

2007 Radiology

3128. Acute cholecystitis: MR findings and differentiation from chronic cholecystitis. (Abstract)

Acute cholecystitis: MR findings and differentiation from chronic cholecystitis. To retrospectively determine the sensitivity and specificity of magnetic resonance (MR) imaging for differentiation between acute and chronic cholecystitis, with histopathologic analysis as the reference standard.Institutional review board approval with waived informed consent was obtained for this HIPAA-compliant study. Four reviewers blinded to the cholecystitis type but aware that cholecystitis was present

2007 Radiology

3129. Cystic changes at supraspinatus and infraspinatus tendon insertion sites: association with age and rotator cuff disorders in 238 patients. (Abstract)

Cystic changes at supraspinatus and infraspinatus tendon insertion sites: association with age and rotator cuff disorders in 238 patients. To retrospectively determine the frequency of posterior and anterior cystic abnormalities at rotator cuff insertion site on the greater tuberosity and to determine their relationship to patient age and rotator cuff disorders.Institutional review board approval was given; informed consent was waived. The study was HIPAA compliant. In 238 patients with rotator

2007 Radiology

3130. Uterine fibroid embolization: the utility of aortography in detecting ovarian artery collateral supply. (Abstract)

of UFE.This study received institutional review board approval with waiver of informed consent and was HIPAA compliant. Retrospective review of 1129 consecutive UFE patients (1072 with aortograms, 57 excluded; mean age, 44 years; range, 21-60 years) was performed to identify all visible OAs. Visible OAs were independently graded by two interventional radiologists according to extent of pelvic arterial flow. If selective arteriography was performed, a second grade was assigned based on assessment

2007 Radiology

3131. Benign and malignant lesions in the human breast depicted with ultrahigh resolution and three-dimensional optical coherence tomography. (Abstract)

Benign and malignant lesions in the human breast depicted with ultrahigh resolution and three-dimensional optical coherence tomography. Institutional review board approval at the participating institutions was obtained. Informed consent was waived for this HIPAA-compliant study. The study purpose was to establish the correspondence of optical coherence tomographic (OCT) image findings with histopathologic findings to understand which features characteristic of breast lesions can be visualized

2007 Radiology

3132. Cancer yield of mammography, MR, and US in high-risk women: prospective multi-institution breast cancer screening study. Full Text available with Trip Pro

Cancer yield of mammography, MR, and US in high-risk women: prospective multi-institution breast cancer screening study. To prospectively determine cancer yield, callback and biopsy rates, and positive predictive value (PPV) of mammography, magnetic resonance (MR) imaging, and ultrasonography (US) in women at high risk for breast cancer.The study was approved by the institutional review board and was HIPAA compliant, and informed consent was obtained. We conducted a prospective pilot study

2007 Radiology

3133. Juvenile and adult congenital heart disease: time-resolved 3D contrast-enhanced MR angiography. (Abstract)

Juvenile and adult congenital heart disease: time-resolved 3D contrast-enhanced MR angiography. To assess the incremental diagnostic value of time-resolved three-dimensional (3D) magnetic resonance (MR) angiography over single-phase 3D MR angiography and cine MR imaging in juvenile and adult patients with congenital heart disease (CHD).The study was HIPAA compliant and was approved by the institutional review board. Written informed consent was obtained from each patient. Eighty-one consecutive

2007 Radiology

3134. Left ventricular spherical remodeling and apical myocardial relaxation: cardiovascular MR imaging measurement of myocardial segments. (Abstract)

Left ventricular spherical remodeling and apical myocardial relaxation: cardiovascular MR imaging measurement of myocardial segments. To prospectively evaluate left ventricular (LV) shape and regional relaxation to determine if rapid, early relaxation of the LV is lost with spherical remodeling of the LV.This HIPAA-compliant study was approved by the institutional review board. All participants gave written informed consent. Cardiovascular magnetic resonance (MR) imaging and transthoracic

2007 Radiology

3135. CT colonography in 546 patients with incomplete colonoscopy. (Abstract)

CT colonography in 546 patients with incomplete colonoscopy. To retrospectively evaluate the positive predictive value (PPV) of computed tomographic (CT) colonography performed in patients who were referred for further examination after incomplete colonoscopy.This HIPAA-compliant retrospective study was approved by the institutional review board; informed consent was waived. We identified 546 consecutive patients (mean age, 64.1 years; 401 [73.4%] women) who underwent CT colonography after

2007 Radiology

3136. Mammary angiosarcomas: imaging findings in 24 patients. (Abstract)

Mammary angiosarcomas: imaging findings in 24 patients. To retrospectively evaluate the clinical, imaging, and pathologic findings of mammary angiosarcomas in 24 patients.The institutional review board approved this HIPAA-compliant study and waived informed consent. Twenty-four patients with records in the surgical pathology database who had a diagnosis of mammary angiosarcoma (n = 26) and who underwent preoperative imaging with mammography, ultrasonography (US), or magnetic resonance (MR

2007 Radiology

3137. Computer-aided detection of colorectal polyps: can it improve sensitivity of less-experienced readers? Preliminary findings. (Abstract)

. Institutions from the United States were HIPAA compliant. Written informed consent was waived at all institutions. The CT colonographic studies in 30 patients from six institutions were collected; 24 images depicted at least one confirmed polyp 6 mm or larger (39 total polyps) and six depicted no polyps. By using an investigational software package, seven less-experienced readers from two institutions evaluated the CT colonographic images and marked or scored polyps by using a five-point scale before

2007 Radiology

3138. Cortical deactivation in mild cognitive impairment: high-field-strength functional MR imaging. (Abstract)

Cortical deactivation in mild cognitive impairment: high-field-strength functional MR imaging. To prospectively identify brain regions in which task-related changes in activation during a memory encoding task, measured with functional magnetic resonance (MR) imaging, correlate with degree of memory impairment across Alzheimer disease (AD), mild cognitive impairment (MCI), and elderly control subjects.The institutional review board approved this HIPAA-compliant study, and each patient gave

2007 Radiology

3139. Breast mass lesions: computer-aided diagnosis models with mammographic and sonographic descriptors. (Abstract)

Breast mass lesions: computer-aided diagnosis models with mammographic and sonographic descriptors. To retrospectively develop and evaluate computer-aided diagnosis (CAD) models that include both mammographic and sonographic descriptors.Institutional review board approval was obtained for this HIPAA-compliant study. A waiver of informed consent was obtained. Mammographic and sonographic examinations were performed in 737 patients (age range, 17-87 years), which yielded 803 breast mass lesions

2007 Radiology

3140. Solitary brain lesions enhancing at MR imaging: evaluation with fluorine 18 fluorocholine PET. (Abstract)

consent in this institutional review board-approved, HIPAA-compliant study. Histopathologic diagnoses were made in 24 cases (13 high-grade gliomas, eight metastases to the brain, and three benign lesions). In six cases, benign lesions were diagnosed on the basis of longitudinal follow-up MR findings. The maximum standardized uptake value (SUV(max)) for lesion and peritumoral regions was measured on PET images, and a lesion-to-normal tissue uptake ratio (LNR) was calculated. Differences were assessed

2007 Radiology

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