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4 results on '"Geraldine J. Chen"'

1. Case 195

Author

Farbod Nasseri, Geraldine J. Chen, and Arun C. Nachiappan

Subjects
Radiology, Nuclear Medicine and imaging
Published
2013

2. The Effect of Needle Gauge on the Risk of Pneumothorax and Chest Tube Placement After Percutaneous Computed Tomographic (CT)-Guided Lung Biopsy

Author

Joe Ensor, Sanjay Gupta, Rony Avritscher, Asher Philip, J. Kuban, Steven Y. Huang, Arun C. Nachiappan, Geraldine J. Chen, Armeen Mahvash, Ravi Murthy, Alda L. Tam, Michael J. Wallace, David C. Madoff, Kamran Ahrar, and Judy Ahrar

Subjects
Adult, Image-Guided Biopsy, Male, medicine.medical_specialty, Percutaneous, Adolescent, Lung biopsy, Radiography, Interventional, Cohort Studies, Young Adult, Risk Factors, Biopsy, NEEDLE GAUGE, medicine, Humans, Radiology, Nuclear Medicine and imaging, Child, Lung, Aged, Retrospective Studies, Aged, 80 and over, medicine.diagnostic_test, business.industry, Ultrasound, Biopsy, Needle, Pneumothorax, Equipment Design, Middle Aged, medicine.disease, respiratory tract diseases, Chest tube placement, medicine.anatomical_structure, Needles, Chest Tubes, Female, Radiology, Cardiology and Cardiovascular Medicine, business, Tomography, X-Ray Computed
Abstract

The aim of this study was to evaluate the effect of coaxial guide needle gauge (18 vs. 19 gauge) on the risk of pneumothorax and chest tube placement after CT-guided lung biopsy. Imaging records of all patients who had undergone CT-guided lung biopsies at our institution from March 1, 2006 to December 9, 2010 were retrospectively reviewed. Univariate and multivariate logistic regression analyses were performed to assess the effect of various patient-, lesion-, and procedure-related variables on subsequent pneumothorax and chest tube placement rates. The study included 4262 biopsies (2304 with 18-gauge and 1958 with 19-gauge coaxial guide needles) in 3917 patients. The rates of pneumothorax and chest tube placement were 30.2 and 15 %, respectively. Pneumothorax occurred in 35 % of procedures performed with 18-gauge needles and in 24.5 % of procedures performed with 19-gauge needles (p

Published
2014

3. Case 195: chondrosarcoma of the posterior mediastinum

Author

Geraldine J. Chen, Arun C. Nachiappan, and Farbod Nasseri

Subjects
musculoskeletal diseases, medicine.medical_specialty, Biopsy, Iohexol, Chondrosarcoma, Contrast Media, Ring (chemistry), Mediastinal Neoplasms, Arc (geometry), Diagnosis, Differential, Meglumine, medicine, Organometallic Compounds, Humans, Radiology, Nuclear Medicine and imaging, business.industry, Anatomy, Middle Aged, musculoskeletal system, medicine.disease, Magnetic Resonance Imaging, Female, Radiography, Thoracic, Radiology, Signal intensity, business, Tomography, X-Ray Computed, Posterior mediastinum
Abstract

Although chondrosarcoma is rare in the spine, it should be considered when there is a ring and arc appearance of calcifications within adjacent bone and heterogeneous high T2 signal intensity within a paraspinal mass.

Published
2013

4. Abstract No. 60: Effect of needle size on pneumothorax and chest tube placement rates in CT-guided percutaneous lung biopsies performed using a coaxial method: a large single-center study

Author

Judy Ahrar, Geraldine J. Chen, Ravi Murthy, Stephen E. McRae, Asher Philip, Armeen Mahvash, J. Kuban, Supriya Gupta, E. Joseph, Michael J. Wallace, Kamran Ahrar, Rony Avritscher, and Alda L. Tam

Subjects
medicine.medical_specialty, Lung, Percutaneous, business.industry, Single Center, medicine.disease, Needle size, Chest tube placement, medicine.anatomical_structure, Pneumothorax, medicine, Radiology, Nuclear Medicine and imaging, Radiology, Coaxial, Cardiology and Cardiovascular Medicine, business
Published
2012

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