Gilligan Leah,  Davenport Matthew,  Trout Andrew,  Su Weizhe,  Zhang Bin,  Goldstein Stuart,  Dillman Jonathan

Final Pr. ID: Paper #: 089

Acute kidney injury (AKI) remains a concern in hospitalized children undergoing computed tomography (CT) examinations with intravenous (IV) iodinated contrast material (ICM). Adult studies have shown frequencies of AKI after CT with IV ICM to be similar to propensity score-matched ICM unexposed cohorts. The purpose of this study is to evaluate the association between IV ICM exposure and AKI in hospitalized pediatric patients with stable kidney function undergoing computed tomography (CT). Read More

Authors:  Gilligan Leah,  Davenport Matthew,  Trout Andrew,  Su Weizhe,  Zhang Bin,  Goldstein Stuart,  Dillman Jonathan

Keywords:  contrast induced nephropathy ,  acute kidney injury ,  iodinated contrast material

Heintzelman Briana,  Khrichenko Dmitry,  Carson Robert,  Darge Kassa,  Serai Suraj,  Hartung Erum

Final Pr. ID: Paper #: 090

ARPKD causes diffuse microcysts in the kidney parenchyma, and cyst burden cannot be quantified by standard image segmentation methods. We sought to assess whether apparent diffusion coefficient (ADC) measured by DWI could serve as a non-invasive biomarker of ARPKD severity, with the hypothesis that ADC would be higher in cystic vs. non-cystic parenchyma due to higher extracellular water content. We examined whether ADC could distinguish healthy kidneys from those affected by ARPKD, and whether a threshold ADC value could be established to differentiate cystic vs. non-cystic parenchyma. Read More

Authors:  Heintzelman Briana,  Khrichenko Dmitry,  Carson Robert,  Darge Kassa,  Serai Suraj,  Hartung Erum

Keywords:  kidney ,  DWI ,  ARPKD

Alhashmi Ghufran,  Yang Joseph,  Amirabadi Afsaneh,  Aquino Michael

Final Pr. ID: Paper #: 091

Background: Prior studies have shown significant discrepancy between the initial radiologist and pediatric radiologist interpretation of imaging exams performed on pediatric patients. Studies specifically focused on the rate of discrepancy of ultrasound (US) exams for suspected appendicitis and intussusception are deficient.
Objective: To determine the agreement and discrepancy rates, and the clinical impact of discrepancies in the diagnosis of appendicitis and ileocolic intussusception between initial US performed at referring community hospitals and second (2^nd) opinion US performed at an academic pediatric tertiary care hospital. Read More

Authors:  Alhashmi Ghufran,  Yang Joseph,  Amirabadi Afsaneh,  Aquino Michael

Keywords:  Second Opinion ,  Appendicitis ,  intussusception

Francavilla Michael,  Mpoti Makhethe,  Vossough Arastoo

Final Pr. ID: Paper #: 092

We sought to determine factors associated with sonographic non-visualization of the appendix in patients being evaluated for appendicitis. Read More

Authors:  Francavilla Michael,  Mpoti Makhethe,  Vossough Arastoo

Keywords:  appendicitis ,  overweight ,  obesity

El-ali Alexander,  Mittal Sameer,  Boyer Kathleen,  Long Christopher,  States Lisa,  Back Susan,  Khrichenko Dmitry,  Serai Suraj

Final Pr. ID: Paper #: 093

Nephron sparing surgery for renal masses is indicated for pediatric patients with bilateral renal masses and masses associated with syndromic conditions predisposed to recurrence. However, there is a paucity of literature on MRI-based biomarkers in patients undergoing partial nephrectomy. Relating these imaging biomarkers to patient outcomes might inform surgical decision making and patient counseling. Read More

Authors:  El-ali Alexander,  Mittal Sameer,  Boyer Kathleen,  Long Christopher,  States Lisa,  Back Susan,  Khrichenko Dmitry,  Serai Suraj

Keywords:  Imaging Biomarkers ,  MRI ,  Renal Tumor

El-ali Alexander,  Sameer Mittal,  Calle Toro Juan,  Shah Jay,  Lawton Brendan,  Kolon Thomas,  Long Christopher,  Back Susan

Final Pr. ID: Paper #: 094

There is no standardized system for assessment of which pediatric tumors are amenable to partial nephrectomy – a surgery that is considered in pediatric patients with bilateral renal masses and those with predisposition syndromes. The RENAL Nephrometry score is the most widely used system to assess renal tumor complexity for surgical decision making in adults. We evaluated the RENAL Nephrometry score and imaging features that might predict perioperative clinical outcomes. Read More

Authors:  El-ali Alexander,  Sameer Mittal,  Calle Toro Juan,  Shah Jay,  Lawton Brendan,  Kolon Thomas,  Long Christopher,  Back Susan

Keywords:  Partial Nephrectomy ,  Wilms Tumor ,  Patient Outcomes

Abu Ata Nadeen,  Dillman Jonathan,  Gandhi Deep,  Dudley Jonathan,  Trout Andrew,  Miethke Alexander

Final Pr. ID: Paper #: 095

Multiple noninvasive magnetic resonance imaging (MRI) methods have been described to detect liver fibrosis, including diffusion-weighted imaging (DWI). The purpose of our study was to evaluate predictors of liver MRI DWI apparent diffusion coefficient (ADC) measurements in pediatric patients with autoimmune liver disease, including the relationship between ADC measurements and liver stiffness.
Read More

Authors:  Abu Ata Nadeen,  Dillman Jonathan,  Gandhi Deep,  Dudley Jonathan,  Trout Andrew,  Miethke Alexander

Keywords:  Liver fibrosis ,  Liver stiffness

Sawyer David,  Mushtaq Raza,  Vedantham Srinivasan,  Udayasankar Unni

Final Pr. ID: Paper #: 096

Acute appendicitis represents an important cause of abdominal pain in pediatric patients. Although imaging plays an increasingly important role in the rapid diagnosis and management of this condition, there is no universally accepted strategy for imaging children suspected of having acute appendicitis. Ultrasound and computed tomography have been used most commonly, but there is rising interest in the use of magnetic resonance imaging (MRI) due to its lack of ionizing radiation or need for intravenous contrast. Recent research has shown that MRI has high diagnostic performance when employed as a first-line test. However, when considering the generalizability of MRI outside of a specialized tertiary care center, the question of operator dependence arises. To determine the performance of MRI when interpreted by readers with limited experience, we performed a retrospective review of preliminary MRI interpretations rendered by radiology residents at our institution, compared with final (attending radiologist) interpretations. Read More

Authors:  Sawyer David,  Mushtaq Raza,  Vedantham Srinivasan,  Udayasankar Unni

Keywords:  Acute appendicitis ,  Magnetic resonance imaging

Tung Eric,  Ayyala Rama,  Sams Cassandra,  Herliczek Thaddeus,  Baird Grayson,  Swenson David

Final Pr. ID: Paper #: 097

Rapid, non-contrast MRI has been reported as accurate for diagnosing acute appendicitis at specialized pediatric hospitals, but there remains a dearth of evidence-based, MRI-specific criteria upon which the diagnosis should be established. To our knowledge, our study comprises the largest study with the most independent readers of MRI-specific diagnostic criteria for pediatric appendicitis reported to date. Read More

Authors:  Tung Eric,  Ayyala Rama,  Sams Cassandra,  Herliczek Thaddeus,  Baird Grayson,  Swenson David

Keywords:  Appendicitis ,  MRI

Patel Dhruv,  Loewen Jonathan,  Richer Edward

Final Pr. ID: Paper #: 098

Ileocolic intussusception is a common cause of intestinal obstruction in young children. Most patients undergo image-guided enema reduction followed by a surgical reduction in enema fails. Many factors associated with decreased enema success have been described in the literature, although a concise scoring system to identify patients who are at risk for surgical intervention and complications does not exist. The goal of this project was to develop a scoring system to identify patients who are at increased risk for enema failure and surgical complications. Read More

Authors:  Patel Dhruv,  Loewen Jonathan,  Richer Edward

Keywords:  Ileocolic Intussusception ,  Image guided therapeutic enema