Radiology Commons^™

Gunshot-Related Pediatric Left Ventricular Apical Aneurysm, Achala Donuru, David Saul, Maansi Parekh, Maruti Kumaran, Vinay Kandula, Rami Kharouf

Department of Radiology Faculty Papers

Penetrating injuries of the thorax and abdomen, such as gunshot and stabbing, are rare in children. We present the case of a pediatric patient with a history of remote gunshot injury presenting with a late aneurysm in the left ventricle.

Radiology In The Era Of Value-Based Healthcare: A Multi-Society Expert Statement From The Acr, Car, Esr, Is3r, Ranzcr, And Rsna., Adrian P Brady, Jaqueline A Bello, Lorenzo E Derchi, Michael Fuchsjäger, Stacy Goergen, Gabriel P Krestin, Emil J Y Lee, David C Levin, Josephine Pressacco, Vijay M Rao, John Slavotinek, Jacob J Visser, Richard E A Walker, James A Brink

Department of Radiology Faculty Papers

Background: The Value-Based Healthcare (VBH) concept is designed to improve individual healthcare outcomes without increasing expenditure, and is increasingly being used to determine resourcing of and reimbursement for medical services. Radiology is a major contributor to patient and societal healthcare at many levels. Despite this, some VBH models do not acknowledge radiology’s central role; this may have future negative consequences for resource allocation.

Methods, fndings and interpretation: This multi-society paper, representing the views of Radiology Societies in Europe, the USA, Canada, Australia, and New Zealand, describes the place of radiology in VBH models and the healthcare value contributions of radiology. …

Us-Triggered Microbubble Destruction For Augmenting Hepatocellular Carcinoma Response To Transarterial Radioembolization: A Randomized Pilot Clinical Trial., John R Eisenbrey, Flemming Forsberg, Corinne E Wessner, Lauren J Delaney, Kristen Bradigan, Sriharsha Gummadi, Mohamed Tantawi, Andrej Lyshchik, Patrick O'Kane, Ji-Bin Liu, Charles Intenzo, Jesse Civan, Warren Maley, Scott W Keith, Kevin Anton, Allison Tan, Amanda Smolock, Susan Shamimi-Noori, Colette M Shaw

Department of Radiology Faculty Papers

Combined US-triggered microbubble destruction and hepatocellular carcinoma radioembolization showed improved treatment response compared with radioembolization alone and no changes in vital signs or liver function.

Background US contrast agents are gas-filled microbubbles (MBs) that can be locally destroyed by using external US. Among other bioeffects, US-triggered MB destruction, also known as UTMD, has been shown to sensitize solid tumors to radiation in preclinical models through localized insult to the vascular endothelial cells.

Purpose: To evaluate the safety and preliminary efficacy of combining US-triggered MB destruction and transarterial radioembolization (TARE) in participants with hepatocellular carcinoma (HCC).

Materials and Methods: In this …

Contrast-Enhanced Ultrasound In Association With Serum Biomarkers For Differentiating Combined Hepatocellular-Cholangiocarcinoma From Hepatocellular Carcinoma And Intrahepatic Cholangiocarcinoma., Jie Yang, Ya-Han Zhang, Jia-Wu Li, Ying-Yu Shi, Jia-Yan Huang, Yan Luo, Ji-Bin Liu, Qiang Lu

Department of Radiology Faculty Papers

BACKGROUND: Combined hepatocellular-cholangiocarcinoma (CHC) is a rare type of primary liver cancer. Due to its complex histopathological characteristics, the imaging features of CHC can overlap with those of hepatocellular carcinoma (HCC) and intrahepatic cholangiocarcinoma (ICC).

AIM: To investigate the possibility and efficacy of differentiating CHC from HCC and ICC by using contrast-enhanced ultrasound (CEUS) Liver Imaging Reporting and Data System (LI-RADS) and tumor biomarkers.

METHODS: Between January 2016 and December 2019, patients with histologically confirmed CHC, ICC and HCC with chronic liver disease were enrolled. The diagnostic formula for CHC was as follows: (1) LR-5 or LR-M with elevated alpha-fetoprotein …

Association Between Medicaid Expansion Status And Lung Cancer Screening Exam Growth: Findings From The Acr Lung Cancer Registry., Neal Gupta, Ethan J. Halpern, Vijay M. Rao

Department of Radiology Faculty Papers

PURPOSE: To determine if Medicaid expansion is associated with increased volumes of lung cancer screenings.

METHODS: A quasi-experimental study was performed to compare the annual growth rates in lung cancer screenings between states that expanded Medicaid (n = 31) versus those that did not (n = 17). Using the American College of Radiology Lung Cancer Screening Registry, we calculated the average annual growth rate between 2016 and 2019 for both groups. Secondary analyses between these two groups also included calculations of the percentages of studies considered appropriate by USPSTF criteria.

RESULTS: No significant difference was identified in the average annual …

Analysis Of Ultrasonographic Misdiagnosis Of Cephalothoracopagus Janiceps Conjoined Twins: A Case Report, Mehnoosh Torkzaban, Nesa Rajabpoor Nikoo, Ateeh Kalateh, Mahboobeh Shirazi

Department of Radiology Faculty Papers

Background & Objective: Conjoined twins (CTs) are rare complications of monozygotic twinning. Cephalothoracopagus is the rarest subtype of CTs and occurs once in every 58 sets of conjoined twins or once in every three million births. Here we present such a case and analyze the possible reasons for ultrasonographic misdiagnosis and recommend solutions to avoid it. Case Report: In this article, we have reported a case of Cephalothoracopagus Janiceps twining. The ultrasonographic diagnosis was missed at 7 and 12 weeks scans. Increased thickness of nuchal translucency and absent nasal bone was observed alongside with suspected gastroschisis. The patient was referred …

Maternal Mortality Following Thromboembolism; Incidences And Prophylaxis Strategies., Mahboobeh Shirazi, Behrokh Sahebdel, Mehnoosh Torkzaban, Elham Feizabad, Marjan Ghaemi

Department of Radiology Faculty Papers

BACKGROUND: Thromboembolism is one of the main causes of maternal mortality, which can be prevented in many cases. The present study was designed to investigate the incidence and prophylaxis strategies for maternal mortality following thromboembolism in postnatal.

METHODS: In this case series study, the data of the mortality cases were extracted according to the ethical and security standards of the Ministry of Health of the country and compared with a healthy control group. The thromboembolism risk factors measured and scored using a questionnaire entitled "the evaluation of risk factors for maternal mortality following thromboembolism during pregnancy, labor, or post-partum".

RESULTS: …

Author Reply., Selin Isguven, Paul H. Chung, Priscilla Machado, Lauren J. Delaney, Antonia F. Chen, Flemming Forsberg, Noreen J. Hickok

Department of Radiology Faculty Papers

No abstract provided.

Incorporation Of A Machine Learning Algorithm With Object Detection Within The Thyroid Imaging Reporting And Data System Improves The Diagnosis Of Genetic Risk., Shuo Wang, Jiajun Xu, Aylin Tahmasebi, Kelly Daniels, Ji-Bin Liu, Joseph Curry, Elizabeth Cottrill, Andrej Lyshchik, John R Eisenbrey

Department of Radiology Faculty Papers

Background: The role of next generation sequencing (NGS) for identifying high risk mutations in thyroid nodules following fine needle aspiration (FNA) biopsy continues to grow. However, ultrasound diagnosis even using the American College of Radiology's Thyroid Imaging Reporting and Data System (TI-RADS) has limited ability to stratify genetic risk. The purpose of this study was to incorporate an artificial intelligence (AI) algorithm of thyroid ultrasound with object detection within the TI-RADS scoring system to improve prediction of genetic risk in these nodules.

Methods: Two hundred fifty-two nodules from 249 patients that underwent ultrasound imaging and ultrasound-guided FNA with NGS with …

Malignant Phyllodes Tumor With Extensive Lipomatous Differentiation., Jeffrey Landy, Priya Johal, Alexander Sevrukov, Ida Teberian, Jason Shames, Christopher Sebastiano, Theresa Kaufman

Department of Radiology Faculty Papers

Phyllodes tumors are uncommon neoplasms of the breast. Lipomatous differentiation of malignant phyllodes tumor is a rare stromal alteration of this fibroepithelial tumor, demonstrated as a fat-containing mass on imaging. We present the case of a 46-year-old woman who was diagnosed with a malignant phyllodes tumor of the breast that demonstrated extensive lipomatous differentiation.

Characterization Of Indeterminate Breast Lesions On B-Mode Ultrasound Using Automated Machine Learning Models, Shuo Wang, Sihua Niu, Enze Qu, Flemming Forsberg, Annina Wilkes, Alexander Sevrukov, Kibo Nam, Robert F. Mattrey, Haydee Ojeda-Fournier, John R. Eisenbrey

Department of Radiology Faculty Papers

Purpose: While mammography has excellent sensitivity for the detection of breast lesions, its specificity is limited. Adjunct screening with ultrasound may partially alleviate this issue, but also increases false positives, resulting in unnecessary biopsies. This study investigated the use of Google AutoML Vision (Mountain View, CA), a commercially available machine learning service, to both identify and characterize indeterminate breast lesions on ultrasound.

Methods: B-mode images from 253 independent cases of indeterminate breast lesions scheduled for core biopsy were used for model creation and validation. The performances of two sub-models from AutoML Vision, the image classification model and object detection model …

Minimizing Penile Prosthesis Implant Infection: What Can We Learn From Orthopedic Surgery?, Selin Isguven, Paul H. Chung, Priscilla Machado, Lauren J. Delaney, Antonia Chen, Flemming Forsberg, Noreen J. Hickok

Department of Radiology Faculty Papers

The implantation of penile protheses for the surgical treatment of erectile dysfunction has risen in popularity over the past several decades. Considerable advances have been made in surgical protocol and device design, specifically targeting infection prevention. Despite these efforts, device infection remains a critical problem, which causes significant physical and emotional burden to the patient. The aim of this review is to broaden the discussion of best practices by not only examining practices in urology, but additionally delving into the field of orthopedic surgery to identify techniques and approaches that may be applied to penile prothesis surgery.

A Sonographer’S Step-By-Step Approach For Preventing Transmission Of Covid-19, Corinne Wessner, Joann Nelson, Sarah Mott, Maria Francesco, Laurence Needleman

Department of Radiology Faculty Papers

The 2019 novel coronavirus, known as COVID-19, has greatly affected the way sonographers care for their patients. Sonography can be a useful imaging tool for surveillance and diagnosis of various conditions associated with COVID-19 patients or patients under investigation (PUIs). Currently, there are limited resources and protocols for preventing the transmission of COVID-19 from ultrasound equipment. Our institution has created a detailed protocol for scanning COVID-19 patients or PUIs to address this important issue.

Ultrasonographic Risk Stratification Of Indeterminate Thyroid Nodules; A Comparison Of An Artificial Intelligence Algorithm With Radiologist Performance, Aylin Tahmasebi, Shuo Wang, Kelly Daniels, Elizabeth Cottrill, Ji-Bin Liu, Jiajun Xu, Andrej Lyshchik, John R. Eisenbrey

Department of Radiology Faculty Papers

Background, Motivation and Objective: Thyroid nodules with indeterminate or suspicious cytology are commonly encountered in clinical practice and their clinical management is controversial. Recently, genetical analysis of thyroid fine needle aspiration (FNAs) was implemented at some institutions to differentiate thyroid nodules as high and low risk based on the presence of certain oncogenes commonly associated with aggressive tumor behavior and poor patient outcomes. Our group recently detailed the performance of a machine-learning model based on ultrasonography images of thyroid nodules for the prediction of high and low risk mutations. This study evaluated the performance of a second-generation machine-learning algorithm incorporating …

Contemporary Interventional Radiology Employment: Analysis Of The American College Of Radiology And The Society Of Interventional Radiology Occupational Portals, Anthony N Hage, Vibhor Wadhwa, Eric J Monroe, David S Shin, Jeffrey Forris Beecham Chick

Department of Radiology Faculty Papers

No abstract provided.

Can Contrast Enhanced Ultrasound Differentiate Intrahepatic Cholangiocarcinoma From Hepatocellular Carcinoma?, Jia-Yan Huang, Jia-Wu Li, Wen-Wu Ling, Tao Li, Yan Luo, Ji-Bin Liu, Qiang Lu

Department of Radiology Faculty Papers

BACKGROUND: Hepatocellular carcinoma (HCC) and intrahepatic cholangiocarcinoma (ICC) differ in treatment and prognosis, warranting an effective differential diagnosis between them. The LR-M category in the contrast-enhanced ultrasound (CEUS) liver imaging reporting and data system (LI-RADS) was set up for lesions that are malignant but not specific to HCC. However, a substantial number of HCC cases in this category elevated the diagnostic challenge.

AIM: To investigate the possibility and efficacy of differentiating ICC from HCC classified in the LR-M category according to the CEUS LI-RADS.

METHODS: Patients with complete CEUS records together with pathologically confirmed ICC and LR-M HCC (HCC classified …

Perfusion-Guided Sonopermeation Of Neuroblastoma: A Novel Strategy For Monitoring And Predicting Liposomal Doxorubicin Uptake, Aditi Bellary, Arelly Villarreal, Rojin Eslami, Quincy J Undseth, Bianca Lec, Ann M Defnet, Naina Bagrodia, Jessica J Kandel, Mark A Borden, Sumbul Shaikh, Rajiv Chopra, Theodore W Laetsch, Lauren J. Delaney, Colette Shaw, Md, John R. Eisenbrey, Sonia L Hernandez, Shashank R Sirsi

Department of Radiology Faculty Papers

Neuroblastoma (NB) is the most common extracranial solid tumor in infants and children, and imposes significant morbidity and mortality in this population. The aggressive chemoradiotherapy required to treat high-risk NB results in survival of less than 50%, yet is associated with significant long-term adverse effects in survivors. Boosting efficacy and reducing morbidity are therefore key goals of treatment for affected children. We hypothesize that these may be achieved by developing strategies that both focus and limit toxic therapies to the region of the tumor. One such strategy is the use of targeted image-guided drug delivery (IGDD), which is growing in …

The Pulmonary Venous Ridge Length To Stratify Stroke Risk In Atrial Fibrillation, Varun Singh, Joy Li, Mark Keroles, Daniel Frisch, Behzad B. Pavri, Baskaran Sundaram, Md, Jason Jacobson, Rajiv Kabadi

Department of Radiology Faculty Papers

Purpose of Study: To evaluate the left superior pulmonary venous ridge length (RL) and the left atrial appendage fractal dimension (LAA FD) as predictors of cardioembolic ischemic stroke (CVA) and transient ischemic attack (TIA) in patients with atrial fibrillation (AF).

Materials, Methods and Procedures: A multicenter, retrospective multicenter study was conducted on patients with AF who underwent cardiac CT prior to catheter ablation between 01/01/2010 and 12/31/2015. Patients were grouped by the presence or absence of prior CVA/TIA. Patients with mitral stenosis, prior mechanical aortic valve replacement, ascending aortic arch atheroma, highrisk patent foramen ovale, history of atrial septal repair …

Coronary Artery Aneurysm In Kawasaki Disease., Achala Donuru, Maansi Parekh, Vinay V R Kandula, Sharon Gould

Department of Radiology Faculty Papers

A 3-year-old male presents to the emergency department with chief complaints of fever and vomiting. He had a positive rapid streptococcus throat test with cervical lymphadenopathy. The patient was started on antibiotics. On examination, there was diffuse erythematous macular rash on the chest. Laboratory tests revealed elevated white cell count and C-reactive protein. Electrocardiogram was notable for prolonged PR interval indicating 1^st degree atrioventricular block. Echocardiogram revealed ectasia of the right coronary artery (RCA). A presumptive diagnosis of Kawasaki disease was made and the patient was started on high-dose aspirin and intravenous immunoglobulins. Cardiac computed tomography angiography (CTA) showed …

Peptic Ulcer Perforation After Cesarean Section; Case Series And Literature Review, Mahboobeh Shirazi, Mehnoosh Tork Zaban, Sriharsha Gummadi, Marjan Ghaemi

Department of Radiology Faculty Papers

BACKGROUND: Peptic ulcer perforation in the early post-cesarean period is rare but may result in maternal mortality.

CASE PRESENTATION: Four cases of post-cesarean peptic ulcer perforation are presented. In all four patients, presentations include peritoneal signs such as acute abdominal pain and progressive distention, hemodynamic instability and intraperitoneal free fluid by ultrasound. Laparotomy and repair were done in all 4 cases. There were 2 maternal deaths. We also have reviewed English literature for the similar cases reported from 1940 to March 2019.

CONCLUSION: New onset tachycardia, abdominal pain and progressive distension after cesarean section without congruent changes in hemoglobin should …

Characterization Of Adnexal Masses Using Contrast-Enhanced Subharmonic Imaging: A Pilot Study., Lauren J. Delaney, Priscilla Machado, Mehnoosh Torkzaban, Andrej Lyshchik, Corinne Wessner, Christine H. Kim, Md, Norman G Rosenblum, Scott D. Richard, Kirk Wallace, Flemming Forsberg

Department of Radiology Faculty Papers

OBJECTIVES: This pilot study evaluated whether contrast-enhanced subharmonic imaging (SHI) could be used to characterize adnexal masses before surgical intervention.

METHODS: Ten women (with 12 lesions) scheduled for surgery of an ovarian mass underwent an SHI examination of their adnexal region using a modified LOGIQ E9 scanner (GE Healthcare, Waukesha, WI) with an endocavitary transducer, in which digital clips were acquired by pulse destruction-replenishment SHI across the lesions. Time-intensity curves were created offline to quantitatively evaluate SHI parameters (fractional tumor perfusion, peak contrast intensity, time to peak contrast enhancement, and area under the time-intensity curve), which were compared to pathologic …

Critical Care Ultrasonography And Its Application For Covid-19, Xi Liu, Md, Yang Hai, Md, Bin Ma, Md, Weelic Chong, Md, Ji-Bin Liu, Md

Department of Radiology Faculty Papers

Ultrasound has developed as an invaluable tool in diagnosis and proper management in the intensive care unit (ICU). Application of critical care ultrasonography is quite distinct from the routine comprehensive diagnostic ultrasound exam, because the urgent setting mandates a goal-directed approach. Performing accurate and efficient critical care ultrasound requires ultrasound providers to first understand the pathophysiology of the disease and related imaging findings, and then follow the protocols to perform a focused ultrasound exam. In the ongoing coronavirus disease 2019 (COVID-19) pandemic, ultrasound plays an essential role in diagnosing and monitoring critically ill COVID-19 patients in the ICU. Our review …

Chinese Expert Consensus On Critical Care Ultrasound Applications At Covid-19 Pandemic, Faqin Lv, Md, Jinrui Wang, Md, Xing Yu, Md, Aiping Yang, Md, Ji-Bin Liu, Md, Linxue Qian, Md, Huixiong Xu, Md, Ligang Cui, Md, Mingxing Xie, Md, Xi Liu, Md, Chengzhong Peng, Md, Yi Huang, Md, Haiyan Kou, Md, Shengzheng Wu, Md, Xi Yang, Md, Bin Tu, Md, Huaping Jia, Md, Qingyi Meng, Md, Je Liu, Md, Ruizhong Ye, Md

Department of Radiology Faculty Papers

The spread of new coronavirus (SARS-Cov-2) follows a different pattern than previous respiratory viruses, posing a serious public health risk worldwide. World Health Organization (WHO) named the disease as COVID-19 and declared it a pandemic. COVID-19 is characterized by highly contagious nature, rapid transmission, swift clinical course, profound worldwide impact, and high mortality among critically ill patients. Chest X-ray, computerized tomography (CT), and ultrasound are commonly used imaging modalities. Among them, ultrasound, due to its portability and non-invasiveness, can be easily moved to the bedside for examination at any time. In addition, with use of 4G or 5G networks, remote …

Efficacy Of Ultrasound-Guided Radiofrequency Ablation Of Parathyroid Hyperplasia: Single Session Vs. Two-Session For Effect On Hypocalcemia, Zeng Zeng, Cheng-Zhong Peng, Ji-Bin Liu, Yi-Wen Li, Hong-Feng He, Qiao-Hong Hu, Bo Lin, Xiao-Gang Shen

Department of Radiology Faculty Papers

To evaluate safety and efficacy of one- vs. two-session radiofrequency ablation (RFA) of parathyroid hyperplasia for patients with secondary hyperparathyroidism (SHPT) and to compare the outcome of both methods on hypocalcemia. Patients with secondary hyperparathyroidism underwent ultrasound guided RFA of parathyroid hyperplasia. Patients were alternately assigned to either group 1 (n = 28) with RFA of all 4 glands in one session or group 2 (n = 28) with RFA of 2 glands in a first session and other 2 glands in a second session. Serum parathyroid hormone (PTH), calcium, phosphorus and alkaline phosphatase (ALP) values were measured at a …

Association Of Interleukin 10 Rs1800896 Polymorphism With Susceptibility To Breast Cancer: A Meta-Analysis., Ziyin Zhu, Ji-Bin Liu, Xi Liu, Linxue Qian

Department of Radiology Faculty Papers

Objective: To evaluate the correlation between interleukin 10 (IL-10) -1082A/G polymorphism (rs1800896) and breast cancers by performing a meta-analysis.

Methods: The Embase and Medline databases were searched through 1 September 2018 to identify qualified articles. Odds ratios (OR) and corresponding 95% confidence intervals (CIs) were applied to evaluate associations.

Results: In total, 14 case-control studies, including 5320 cases and 5727 controls, were analyzed. We detected significant associations between the IL10 -1082 G/G genotype and risk of breast cancer (AA + AG vs. GG: OR = 0.88, 95% CI = 0.80-0.97). Subgroup analyses confirmed a significant association in Caucasian populations (OR …

Osteoblastoma In The Occipital Bone: A Case Report Of A Rare Tumor In The Calvarium, Lukas M. Trunz, Scott H. Faro, Richard J. Gorniak

Department of Radiology Faculty Papers

Osteoblastomas infrequently occur in the calvarium, displaying a preference for temporal and frontal bones when it does. We present an unusual case of a large, expansile osteoblastoma in the occipital bone of a 23-year-old man who presented with a nontender lump at the back of his head. Initial computed tomography scan showed a large occipital bone mass, and after additional imaging, a gross total resection was performed. Histopathological examination revealed an osteoblastoma. Although these tumors are benign, overlapping imaging characteristics of lesions affecting the calvarium often present a diagnostic dilemma. This case emphasizes the importance of imaging in the management …

Extra-Articular Synovial Chondromatosis Of The Ankle: Unusual Case With Radiologic-Pathologic Correlation., Sachin Dheer, Paul E Sullivan, Faith Schick, Homyar Karanjia, Nicholas Taweel, John Abraham, Wei Jiang

Department of Radiology Faculty Papers

Extra-articular synovial chondromatosis is a rare entity in the foot and ankle. We present a case of a 49-year-old female who presented for evaluation of a palpable concern following trauma; which was found to represent synovial chondromatosis. This case demonstrates the multimodality imaging findings, including ultrasound and MRI, with histopathologic correlation.

First Pass Effect In Patients Treated With The Trevo Stent-Retriever: A Track Registry Study Analysis., Maxim Mokin, Christopher T. Primiani, Alicia C. Castonguay, Raul G. Nogueira, Diogo C. Haussen, Joey D. English, Sudhakar R. Satti, Jennifer Chen, Hamed Farid, Candace Borders, Erol Veznedaroglu, Mandy J. Binning, Ajit Puri, Nirav A. Vora, Ron F. Budzik, Guilherme Dabus, Italo Linfante, Vallabh Janardhan, Amer Alshekhlee, Michael G. Abraham, Randall Edgell, Muhammad Asif Taqi, Ramy El Khoury, Anie Q. Majjhoo, Mouhammed R. Kabbani, Michael T. Froehler, Ira Finch, Sameer A. Ansari, Roberta Novakovic, Thanh N. Nguyen, Osama O. Zaidat

Department of Radiology Faculty Papers

Background and Objective: The first pass effect (FPE; achieving complete recanalization with a single thrombectomy device pass) has been shown to be associated with higher rates of good clinical outcomes in patients with acute ischemic stroke. Here, we investigate clinical and radiographic factors associated with FPE in a large U.S. post-marketing registry (TRACK, Trevo Stent-Retriever Acute Stroke).

Methods: We analyzed the TRACK database (multicenter registry of 634 patients from 23 centers from March 2013 through August 2015), which 609 patients were included in the final analysis. FPE was defined as a single pass/use of device, TICI 2c/3 recanalization, and no …

Acoustic Parameters For Optimal Ultrasound-Triggered Release From Novel Spinal Hardware Devices., Lauren J. Delaney, Cemile Basgul, Daniel W Macdonald, Keith Fitzgerald, Noreen J. Hickok, Steven M Kurtz, Flemming Forsberg

Department of Radiology Faculty Papers

Post-operative infection is a catastrophic complication of spinal fusion surgery, with rates as high as 10%, and existing preventative measures (i.e., peri-operative antibiotics) are only partially successful. To combat this clinical problem, we have designed a drug delivery system around polyether ether ketone clips to be used for prophylactic post-surgical release of antibiotics upon application of ultrasound. The overall hypothesis is that antimicrobial release from this system will aggressively combat post-surgical bacterial survival. This study investigated a set of acoustic parameters optimized for in vitro ultrasound-triggered coating rupture and subsequent release of encapsulated prophylactic antibiotics. We determined that a transducer …

Diagnostic Accuracy Of Ceus Li-Rads For The Characterization Of Liver Nodules 20 Mm Or Smaller In Patients At Risk For Hepatocellular Carcinoma., Jia-Yan Huang, Jia-Wu Li, Qiang Lu, Yan Luo, Ling Lin, Yu-Jun Shi, Tao Li, Ji-Bin Liu, Andrej Lyshchik

Department of Radiology Faculty Papers

Background: American College of Radiology contrast agent–enhanced US Liver Imaging Reporting and Data System (CEUS LI-RADS) was developed to improve the accuracy of hepatocellular carcinoma (HCC) diagnosis at contrast agent2enhanced US. However, to the knowledge of the authors, the diagnostic accuracy of the system in characterization of liver nodules 20 mm or smaller has not been fully evaluated.

Purpose: To evaluate the diagnostic accuracy of CEUS LI-RADS in diagnosing HCC in liver nodules 20 mm or smaller in patients at risk for HCC.

Materials and Methods: Between January 2015 and February 2018, consecutive patients at risk for HCC presenting with …