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Full-Text Articles in Medical Specialties
Growth Hormone Deficiency: When Is Mri Imaging Indicated?, Haya Azouz, Kurt Tech, M Bassem Dekelbab
Growth Hormone Deficiency: When Is Mri Imaging Indicated?, Haya Azouz, Kurt Tech, M Bassem Dekelbab
Conference Presentation Abstracts
Objectives The diagnosis of Growth Hormone Deficiency (GHD) is made with a combination of clinical assessment, measurement of insulin-like growth factor 1 (IGF-1) and insulin-like growth factor binding protein-3 (IGFBP-3) levels, and GH stimulation tests. Provocative (stimulation) GH testing is indicated for most patients to confirm a diagnosis of GHD. Traditionally, most pediatric endocrinologists defined a "normal" response by a serum GH concentration of >10 ng/ml. After the clinical and biochemical diagnosis of GHD is made, it is typical to obtain an MRI of the brain with narrow cuts through the hypothalamic-pituitary area. The aim of our study is to …
Rare Autoimmune Disease Caused By Not-So Rare Virus, Tiffany Marchewka, Acho Bernard, Molly Kempa, Kathryn Heal, Joseph M. Fullmer
Rare Autoimmune Disease Caused By Not-So Rare Virus, Tiffany Marchewka, Acho Bernard, Molly Kempa, Kathryn Heal, Joseph M. Fullmer
Conference Presentation Abstracts
No abstract provided.
Expansion Of The Detrusor Muscular Ring Surrounding The Bladder Neck On Mri: Moving Beyond The Prostate As An Etiology Of Lower Urinary Tract Symptoms Due To Benign Prostatic Hyperplasia, Kiran Nandalur, David Walker, Hong Ye, Sayf A. Al-Katib, Brian Seifman, David Gangwish, Abhay Dhaliwal, Connor Ervin, Kayla Dobies, Channing Sesoko, Sirisha Nandalur, Bernadette Zwaans, Jennifer Nguyen, Jason Hafron
Expansion Of The Detrusor Muscular Ring Surrounding The Bladder Neck On Mri: Moving Beyond The Prostate As An Etiology Of Lower Urinary Tract Symptoms Due To Benign Prostatic Hyperplasia, Kiran Nandalur, David Walker, Hong Ye, Sayf A. Al-Katib, Brian Seifman, David Gangwish, Abhay Dhaliwal, Connor Ervin, Kayla Dobies, Channing Sesoko, Sirisha Nandalur, Bernadette Zwaans, Jennifer Nguyen, Jason Hafron
Conference Presentation Abstracts
Purpose: The etiology of lower urinary tract symptoms secondary to benign prostatic hyperplasia (LUTS/BPH) remains uncertain. The purpose of our study was to quantitatively analyze pelvic anatomic characteristics on magnetic resonance imaging (MRI) to assess for independent factors for symptoms.
*Methods and Materials: This retrospective single-institution study evaluated treatment-naïve men who underwent prostate MRI within 3 months of International Prostate Symptom Score (IPSS) from June 2021 to February 2022. Factors measured on MRI included: detrusor muscular ring surrounding the bladder neck measured as area and alternatively diameter, central gland (CG) mean apparent diffusion coefficient (ADC), levator hiatus (LH) volume, intrapelvic …
Intraorbital Transvenous Embolization Of A Direct Arteriovenous Fistula, Olivia Cheng, Stella Chung, Jeffrey Wilseck, Alon Kahana
Intraorbital Transvenous Embolization Of A Direct Arteriovenous Fistula, Olivia Cheng, Stella Chung, Jeffrey Wilseck, Alon Kahana
Conference Presentation Abstracts
No abstract provided.
Irreversible Electroporation For Recurrent Pelvic Metastases: Case Series And Literature Review., Duncan A. Stevens, Jeffrey H. Savin, Brett J. Friedman, Michael A. Savin
Irreversible Electroporation For Recurrent Pelvic Metastases: Case Series And Literature Review., Duncan A. Stevens, Jeffrey H. Savin, Brett J. Friedman, Michael A. Savin
Conference Presentation Abstracts
Purpose: Irreversible electroporation (IRE) is a nonthermal ablative technique that has potential safety advantages over thermal ablation in the treatment of tumors near critical structures. It creates an electrical field which forms permanent nanopores in the membranes of cells and triggers apoptosis. This case series reviews three patients with pelvic metastases from colorectal cancer treated with IRE.
Material and Methods: Two patients had rectal cancer and one sigmoid colon cancer. The mean age was 55 years and there were two males and one female. Thermal ablation was contraindicated due to proximity to ureter, bladder, bowel, and/or sciatic or lumbosacral nerves. …
Automating 4dct-Ventilation Imaging Generation Using Ai-Based Advanced Lung Contours, Yingxuan Chen, Sohrab Pahlavan, Paul Jacobs, Farnoush Forghani, Edward Castillo, Richard Castillo, Yevgeniy Vinogradskiy
Automating 4dct-Ventilation Imaging Generation Using Ai-Based Advanced Lung Contours, Yingxuan Chen, Sohrab Pahlavan, Paul Jacobs, Farnoush Forghani, Edward Castillo, Richard Castillo, Yevgeniy Vinogradskiy
Conference Presentation Abstracts
Purpose: Functional avoidance radiotherapy uses functional imaging to reduce pulmonary toxicity by designing radiotherapy plans that reduce doses to functional lung. A novel form of lung functional imaging applied for functional avoidance uses 4DCT imaging to calculating 4DCT-based lung ventilation (4DCT-ventilation). The process of generating 4DCT-ventilation images requires advanced lung segmentation (consisting of a standard lung with airway and vasculature removed) which is a manual and time-consuming process. The purpose of this work is to automate 4DCT-ventilation imaging generation using AI-based auto-segmentation techniques for advanced lung contouring.
Methods: 429 patients with 4DCT data from two institutions were used. Three methods …
End-To-End Commissioning & Treatment Plan Quality Assurance For Cranial Single-Isocenter Multi-Target (Simt) Radiosurgery, Cory Knill
Conference Presentation Abstracts
No abstract provided.
Pivotal Trial Of Mri-Guided Transurethral Ultrasound Ablation In Men With Localized Prostate Cancer: Three-Year Follow-Up, Steven S. Raman, Sandeep Arora, Katarzyna J. Macura, Aytekin Oto, Jurgen Fütterer, Robert Staruch, Temel Tirkes, David Bonekamp, Masoom Haider, Derek W. Cool, Kiran Nandalur
Pivotal Trial Of Mri-Guided Transurethral Ultrasound Ablation In Men With Localized Prostate Cancer: Three-Year Follow-Up, Steven S. Raman, Sandeep Arora, Katarzyna J. Macura, Aytekin Oto, Jurgen Fütterer, Robert Staruch, Temel Tirkes, David Bonekamp, Masoom Haider, Derek W. Cool, Kiran Nandalur
Conference Presentation Abstracts
Purpose: MRI-guided transurethral ultrasound ablation (TULSA) of prostate tissue is a novel directional ultrasound heating under real-time MRI thermometry feedback control. We report 3-year outcomes from the pivotal TULSA-PRO Ablation Clinical Trial. Materials and Methods: With IRB approval and HIPAA compliance, 115 men with organ-confined prostate cancer (≤T2b, PSA ≤15 ng/ml, Grade Group [GG] 1-2) across 13 centers underwent whole-gland ablation sparing the urethra, bladder neck, and urinary sphincter. Primary endpoints were safety and PSA reduction at 1 year. Secondary endpoints: prostate volume reduction, mpMRI, and 10 core biopsy at 1 year; quality of life, PSA, and salvage to 3 …
Aspnr Programing: Interesting Pediatric Neuroradiology Case Session (Sa-Cme): Seizures., A Krishnan
Aspnr Programing: Interesting Pediatric Neuroradiology Case Session (Sa-Cme): Seizures., A Krishnan
Conference Presentation Abstracts
No abstract provided.
A Rare Case Of Autoimmune Glial Fibrillary Acidic Protein Astrocytopathy, A Dearden, J Doty, A Krishnan, J Fellows
A Rare Case Of Autoimmune Glial Fibrillary Acidic Protein Astrocytopathy, A Dearden, J Doty, A Krishnan, J Fellows
Conference Presentation Abstracts
Purpose This is a 69-year-old male who presented with cognitive decline, hypophonia, dyspraxia, course tremor, myoclonic jerks, and gait dysfunction, all developing over 3-4 weeks. Initial head CT and MRI brain without contrast were negative. EEG demonstrated diffuse slowing. CSF analysis revealed elevated protein and elevated white blood cells (lymphocyte predominant). Given neurological worsening, MRI brain and cervical spine with contrast were performed and unique findings were identified, detailed below. The CSF autoimmune panel returned positive for Glial Fibrillary Acidic Protein (GFAP). The patient was started on steroids with rapid clinical improvement. Materials and Methods MRI brain with contrast 2 …
Spontaneous Aneurysmal Subdural Hemorrhage: A Rare Entity, M Rizk, A Khan, J Ghannam, M Waheed
Spontaneous Aneurysmal Subdural Hemorrhage: A Rare Entity, M Rizk, A Khan, J Ghannam, M Waheed
Conference Presentation Abstracts
Purpose 36-year-old female who presented to our emergency department for worsening headache and new onset left sided diplopia. Physical exam confirmed a left 3rd nerve palsy. A CT of the head was obtained which showed a subdural hemorrhage which ultimately resulted in coil embolization of a ruptured aneurysm. The patient tolerated the procedure well and was closely followed for vasospasm development with routine transcranial ultrasounds which were negative. Patient remained stable and reported resolution of her headache symptoms on discharge. However, she continued to have a left 3rd nerve palsy. Materials and Methods CT of the head was obtained which …
Vertebral Artery Pathology: A Review Of Diagnosis And Angiographic Intervention, R Joshi, A Abbas, J Wilseck
Vertebral Artery Pathology: A Review Of Diagnosis And Angiographic Intervention, R Joshi, A Abbas, J Wilseck
Conference Presentation Abstracts
Purpose The vertebral arteries are a critical component of the spinal and posterior intracranial circulation. Their associated pathologies are wide ranging including traumatic and congenital causes. Given the profound impact on patient management and outcomes, a careful evaluation of the vertebral artery with a firm understanding of normal anatomy is required to properly rule out pathology. This educational exhibit will provide an overview of the normal anatomy of the vertebral arteries and a case-based review of a large spectrum of their pathologies, including traumatic, spontaneous, iatrogenic, and congenital. Utilization of various imaging modalities including, CTA, MRA, angiography, and ultrasound will …
Neuroimaging Spectrum Of Compressive Non-Neoplastic Myelopathy, A Dearden, J Ghannam, A Wang, A Krishnan
Neuroimaging Spectrum Of Compressive Non-Neoplastic Myelopathy, A Dearden, J Ghannam, A Wang, A Krishnan
Conference Presentation Abstracts
Purpose Compressive non-neoplastic spinal cord lesions represent a broad spectrum of neurologic disease processes contributing to back pain and neuropathy, including traumatic, inflammatory/infectious, degenerative, and metastatic etiologies. Compressive cord lesions are optimally evaluated with high-field strength magnet MRI with and without contrast. Differential diagnoses for cord lesions are inherently broad due to the nonspecific nature of increased intramedullary signal on T2-weighted images seen with many cord pathologies. However, differentiating features such as degree of cord expansion, enhancement characteristics, and extramedullary findings can provide additional information to refine the differential diagnosis. In this exhibit, we present representative cases of compressive non-neoplastic …
Neuroimaging Spectrum Of Non-Compressive Non-Neoplastic Myelopathy, J Ghannam, A Dearden, R Joshi, A Wang, K Barry
Neuroimaging Spectrum Of Non-Compressive Non-Neoplastic Myelopathy, J Ghannam, A Dearden, R Joshi, A Wang, K Barry
Conference Presentation Abstracts
Purpose Non-compressive, non-neoplastic spinal cord lesions represent a broad range of disease processes and entities. Most commonly, spinal cord lesions demonstrate T2 signal abnormality on magnetic resonance imaging, a relatively nonspecific finding requiring a variety of differentiating factors to build an accurate differential diagnosis (1). Additionally, many disease entities have significant overlapping features on MRI, rendering it difficult to separate diagnoses and guide management (2). The combination of signal characteristics on MRI, timing of clinical presentation, degree of cord expansion, and contrast enhancement patterns can provide improved differentiation between disease entities. The purpose of this exhibit is to educate the …
The Onus On The Conus: A Neuroimaging Spectrum Of Conus Medullaris Pathologies, A Dearden, J Ghannam, A Wang, A Krishnan
The Onus On The Conus: A Neuroimaging Spectrum Of Conus Medullaris Pathologies, A Dearden, J Ghannam, A Wang, A Krishnan
Conference Presentation Abstracts
Purpose The conus medullaris is the tapered, cone-shaped end of the distal thoracic spinal cord, normally terminating near the L1-2 intervertebral disc space. As a junction between the cord and the cauda equina nerve roots, the conus can present with common cord pathologies in atypical presentations, as well as present with unique, complex pathologies found nowhere else in the cord. The conus is optimally evaluated with MRI of the lumbar spine before and after the administration of contrast medium. Accurate diagnosis of lesions within the conus is complicated by the nonspecific nature of increased intramedullary signal on T2-weighted MRI imaging, …
Benign And Malignant Cervical Lymphadenopathy: A Practical Imaging Approach To The Diagnosis Of Common And Uncommon Conditions, A Dhaliwal, J Sharma, S Noujaim
Benign And Malignant Cervical Lymphadenopathy: A Practical Imaging Approach To The Diagnosis Of Common And Uncommon Conditions, A Dhaliwal, J Sharma, S Noujaim
Conference Presentation Abstracts
Purpose Generally, cervical lymphadenopathy is a benign, self-limited, and reactive process that is frequently encountered, especially in the pediatric population. However, when present in the setting of a neoplastic process, cervical lymphadenopathy is an important prognostic factor that can alter patient management. Determining the etiology of cervical lymphadenopathy is as essential as its detection. Etiologies include infection, granulomatous disease, malignancy, autoimmune disorders, iatrogenic causes, and miscellaneous or unusual conditions. Careful attention to clinical history and laboratory findings and the use of appropriate radiological imaging is crucial to obtaining the correct diagnosis. A variety of cases, including benign and malignant processes, …
You’Re Testing My Patients: Clinicians’ Preferences For Structured Reporting And Measurement Data, Davit Meliksetyan, Allan Brazier, Adela Pouzar, Sayf Al-Katib
You’Re Testing My Patients: Clinicians’ Preferences For Structured Reporting And Measurement Data, Davit Meliksetyan, Allan Brazier, Adela Pouzar, Sayf Al-Katib
Conference Presentation Abstracts
No abstract provided.
Dear Radiologist: Cure My Disc Bulge, But Please Don’T Miss My Spinal Tumor!, A Dearden, J Ghannam, A M Wang
Dear Radiologist: Cure My Disc Bulge, But Please Don’T Miss My Spinal Tumor!, A Dearden, J Ghannam, A M Wang
Conference Presentation Abstracts
No abstract provided.
Covid-19 Associated Myelin Oligodendrocyte Glycoprotein Antibody-Associated Disease (Mogad), Evan Palamara, Ay-Ming Wang, Samir E. Noujaim, Kathleen A. Barry, Suleiman Kojan, M Mazen Al-Hakim, Richard Silbergleit
Covid-19 Associated Myelin Oligodendrocyte Glycoprotein Antibody-Associated Disease (Mogad), Evan Palamara, Ay-Ming Wang, Samir E. Noujaim, Kathleen A. Barry, Suleiman Kojan, M Mazen Al-Hakim, Richard Silbergleit
Conference Presentation Abstracts
No abstract provided.
Stability Of The Sacral Table Angle In Pediatric Patients With Spinal Pathology, David G. Wallington, Patrick D. Albright, Alexandria I. Chrumka, Rebecca D. Funk, Dale E. Rowe, Joseph K. Weistroffer, Karen M. Bovid
Stability Of The Sacral Table Angle In Pediatric Patients With Spinal Pathology, David G. Wallington, Patrick D. Albright, Alexandria I. Chrumka, Rebecca D. Funk, Dale E. Rowe, Joseph K. Weistroffer, Karen M. Bovid
Conference Presentation Abstracts
INTRODUCTION | Pelvic incidence, lumbar lordosis, and pelvisacral angle are common radiographic measures used to evaluate sagittal alignment of the spine and pelvis to assist in clinical decision making. However, the natural history of the sacral table angle (STA) is not well characterized, and there remains uncertainty regarding STA progression over time. Previous studies have established that the STA is stable over time in adult patients, however this question has not been answered for younger patients who have not reached skeletal maturity. In this study, we aim to determine sacral table angle stability over time in a younger patient population. …
Monte Carlo (Gate/Geant4) Estimation Of Clinician Hand Dose From Radionuclide Injection, H Edelman, Brian Loughery
Monte Carlo (Gate/Geant4) Estimation Of Clinician Hand Dose From Radionuclide Injection, H Edelman, Brian Loughery
Conference Presentation Abstracts
No abstract provided.