1
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Towbin AJ, Ye W, Huang S, Karmazyn BW, Molleston JP, Masand P, Leung DH, Chang S, Narkewicz MR, Alazraki AL, Freeman AJ, Otto RK, Green N, Kamel IR, Karnsakul WW, Magee JC, Tkach J, Palermo JJ. Prospective study of quantitative liver MRI in cystic fibrosis: feasibility and comparison to PUSH cohort ultrasound. Pediatr Radiol 2023; 53:2210-2220. [PMID: 37500799 DOI: 10.1007/s00247-023-05706-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 06/08/2023] [Accepted: 06/17/2023] [Indexed: 07/29/2023]
Abstract
BACKGROUND Pediatric radiologists can identify a liver ultrasound (US) pattern predictive of progression to advanced liver disease. However, reliably discriminating these US patterns remains difficult. Quantitative magnetic resonance imaging (MRI) may provide an objective measure of liver disease in cystic fibrosis (CF). OBJECTIVE The purpose of this study was to determine if quantitative MRI, including MR elastography, is feasible in children with CF and to determine how quantitative MRI-derived metrics compared to a research US. MATERIALS AND METHODS A prospective, multi-institutional trial was performed evaluating CF participants who underwent a standardized MRI. At central review, liver stiffness, fat fraction, liver volume, and spleen volume were obtained. Participants whose MRI was performed within 1 year of US were classified by US pattern as normal, homogeneous hyperechoic, heterogeneous, or nodular. Each MRI measure was compared among US grade groups using the Kruskal-Wallis test. RESULTS Ninety-three participants (51 females [54.8%]; mean 15.6 years [range 8.1-21.7 years]) underwent MRI. MR elastography was feasible in 87 participants (93.5%). Fifty-eight participants had an US within 1 year of MRI. In these participants, a nodular liver had significantly higher stiffness (P<0.01) than normal or homogeneous hyperechoic livers. Participants with a homogeneous hyperechoic liver had a higher fat fraction (P<0.005) than others. CONCLUSION MR elastography is feasible in children with CF. Participants with a nodular pattern had higher liver stiffness supporting the US determination of advanced liver disease. Participants with a homogeneous hyperechoic pattern had higher fat fractions supporting the diagnosis of steatosis.
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Affiliation(s)
- Alexander J Towbin
- Department of Radiology, Cincinnati Children's Hospital, 3333 Burnet Avenue, MLC 5031, Cincinnati, OH, 45229, USA.
- Department of Radiology, University of Cincinnati School of Medicine, Cincinnati, OH, USA.
| | - Wen Ye
- Department of Biostatistics, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Suiyuan Huang
- Department of Biostatistics, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Boaz W Karmazyn
- Pediatric Radiology, Riley Hospital for Children at IU Health, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Jean P Molleston
- Pediatric Gastroenterology, Hepatology and Nutrition, Riley Hospital for Children at IU Health, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Prakash Masand
- Division of Radiology, Texas Children's Hospital, Houston, TX, USA
| | - Daniel H Leung
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Texas Children's, Baylor College of Medicine, Houston, TX, USA
| | - Samuel Chang
- Department of Radiology, Banner MD Anderson Cancer Center, Gilbert, AZ, USA
| | - Michael R Narkewicz
- Digestive Health Institute, Children's Hospital Colorado and Section of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, USA
| | - Adina L Alazraki
- Department of Radiology, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, GA, USA
| | - A Jay Freeman
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Nationwide Children's Hospital, Columbus, OH, USA
| | - Randolph K Otto
- Department of Radiology, University of Washington and Seattle Children's Hospital, Seattle, WA, USA
| | - Nicole Green
- Division of Gastroenterology and Hepatology, University of Washington and Seattle Children's Hospital, Seattle, WA, USA
| | - Ihab R Kamel
- Department of Radiology, John Hopkins School of Medicine, Baltimore, MD, USA
| | - Wikrom W Karnsakul
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, John Hopkins School of Medicine, Baltimore, MD, USA
| | - John C Magee
- Department of Surgery, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Jean Tkach
- Department of Radiology, Cincinnati Children's Hospital, 3333 Burnet Avenue, MLC 5031, Cincinnati, OH, 45229, USA
- Department of Radiology, University of Cincinnati School of Medicine, Cincinnati, OH, USA
| | - Joseph J Palermo
- Division of Pediatric, Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
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2
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Siegel MJ, Leung DH, Molleston JP, Ye W, Paranjape SM, Freeman AJ, Palermo JJ, Stoll J, Masand P, Karmazyn B, Harned R, Ling SC, Navarro OM, Karnsakul W, Alazraki A, Schwarzenberg SJ, Towbin AJ, Alonso EM, Nicholas JL, Green N, Otto RK, Magee JC, Narkewicz MR. Heterogeneous liver on research ultrasound identifies children with cystic fibrosis at high risk of advanced liver disease. J Cyst Fibros 2023; 22:745-755. [PMID: 37032248 PMCID: PMC10523874 DOI: 10.1016/j.jcf.2023.03.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 03/28/2023] [Accepted: 03/29/2023] [Indexed: 04/11/2023]
Abstract
BACKGROUND This study examines whether heterogeneous (HTG) pattern on liver ultrasound (US) identifies children at risk for advanced cystic fibrosis liver disease (aCFLD). METHODS Prospective 6-year multicenter case-controlled cohort study. Children with pancreatic insufficient cystic fibrosis (CF) aged 3-12 years without known cirrhosis underwent screening US. Participants with HTG were matched (by age, Pseudomonas infection status and center) 1:2 with participants with normal (NL) US pattern. Clinical status and laboratory data were obtained annually and US bi-annually for 6 years. Primary endpoint was development of nodular (NOD) US pattern consistent with aCFLD. RESULTS 722 participants underwent screening US, with 65 HTG and 592 NL. Final cohort included 55 HTG and 116 NL with ≥ 1 follow-up US. ALT, AST, GGTP, FIB-4, GPR and APRI were higher, and platelets were lower in HTG compared to NL. HTG had a 9.5-fold increased incidence (95% confidence interval [CI]:3.4, 26.7, p<0.0001, 32.7% vs 3.4%) of NOD versus NL. HTG had a sensitivity of 82% and specificity of 75% for subsequent NOD. Negative predictive value of a NL US for subsequent NOD was 96%. Multivariate logistic prediction model that included baseline US, age, and log(GPR) improved the C-index to 0.90 compared to only baseline US (C-index 0.78). Based on survival analysis, 50% of HTG develop NOD after 8 years. CONCLUSIONS Research US finding of HTG identifies children with CF with a 30-50% risk for aCFLD. A score based on US pattern, age and GPR may refine the identification of individuals at high risk for aCFLD. CLINICAL TRIAL REGISTRATION Prospective Study of Ultrasound to Predict Hepatic Cirrhosis in CF: NCT 01,144,507 (observational study, no consort checklist).
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Affiliation(s)
- Marilyn J Siegel
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, MO, USA
| | - Daniel H Leung
- Division of Gastroenterology, Hepatology and Nutrition, Texas Children's Hospital, Department of Pediatrics, Baylor College of Medicine, Houston TX, USA
| | - Jean P Molleston
- Pediatric Gastroenterology, Hepatology and Nutrition, Riley Hospital for Children, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Wen Ye
- Department of Biostatistics, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Shruti M Paranjape
- Division of Pediatric Pulmonology, John Hopkins School of Medicine, Baltimore, MD, USA
| | - A Jay Freeman
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Emory University School of Medicine, Atlanta, GA, USA
| | - Joseph J Palermo
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center, and Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Janis Stoll
- Division of Gastroenterology and Nutrition, Washington University School of Medicine, St Louis, MO, USA
| | - Prakash Masand
- Division of Radiology, Texas Children's Hospital, Houston, TX, USA
| | - Boaz Karmazyn
- Pediatric Radiology, Riley Hospital for Children, Indianapolis, IN, USA
| | - Roger Harned
- Division of Pediatric Radiology, Children's Hospital Colorado and University of Colorado School of Medicine, Aurora, CO, USA
| | - Simon C Ling
- Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Department of Paediatrics, University of Toronto, Toronto, Ontario, Canada
| | - Oscar M Navarro
- Department of Medical Imaging, Department of Diagnostic Imaging, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Wikrom Karnsakul
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, John Hopkins School of Medicine, Baltimore, MD, USA
| | - Adina Alazraki
- Department of Radiology, Emory University School of Medicine and Children's Healthcare of Atlanta, Egleston, Atlanta, GA, USA
| | - Sarah Jane Schwarzenberg
- Pediatric Gastroenterology, University of Minnesota Masonic Children's Hospital, Minneapolis, MN, USA
| | - Alex J Towbin
- Department of Radiology, Cincinnati Children's Hospital Medical Center and Department of Radiology, University of Cincinnati College of Medicine Cincinnati, OH, USA
| | - Estella M Alonso
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Ann & Robert H. Lurie Children's Hospital, Chicago, IL, USA
| | - Jennifer L Nicholas
- Department of Radiology, Case Western Reserve School of Medicine, University Hospitals Rainbow Babies and Children's Hospital, Cleveland, OH, USA
| | - Nicole Green
- Division of Gastroenterology and Hepatology, University of Washington and Seattle Children's Hospital, Seattle, WA, USA
| | - Randolph K Otto
- Department of Radiology, Seattle Children's Hospital, Seattle, WA, USA
| | - John C Magee
- Department of Surgery, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Michael R Narkewicz
- Children's Hospital Colorado and Section of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Digestive Health Institute, University of Colorado School of Medicine, Aurora, CO, USA.
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Romberg EK, Stanescu AL, Bhutta ST, Otto RK, Ferguson MR. Computed tomography of pulmonary veins: review of congenital and acquired pathologies. Pediatr Radiol 2022; 52:2510-2528. [PMID: 34734315 DOI: 10.1007/s00247-021-05208-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 07/26/2021] [Accepted: 09/10/2021] [Indexed: 10/19/2022]
Abstract
Newer-generation CT scanners with ultrawide detectors or dual sources offer millisecond image acquisition times and significantly decreased radiation doses compared to historical cardiac CT and CT angiography. This technology is capable of nearly freezing cardiac and respiratory motion. As a result, CT is increasingly used for diagnosing and monitoring cardiac and vascular abnormalities in the pediatric population. CT is particularly useful in the setting of pulmonary vein evaluation because it offers evaluation of the entire pulmonary venous system and lung parenchyma. In this article we review a spectrum of congenital and acquired pulmonary venous abnormalities, including potential etiologies, CT imaging findings and important factors of preoperative planning. In addition, we discuss optimization of CT techniques for evaluating the pulmonary veins.
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Affiliation(s)
- Erin K Romberg
- Department of Radiology, University of Washington and Seattle Children's Hospital, 4800 Sand Point Way NE, Seattle, WA, 98105, USA.
| | - A Luana Stanescu
- Department of Radiology, University of Washington and Seattle Children's Hospital, 4800 Sand Point Way NE, Seattle, WA, 98105, USA
| | - Sadaf T Bhutta
- Department of Radiology, University of Washington and Seattle Children's Hospital, 4800 Sand Point Way NE, Seattle, WA, 98105, USA
| | - Randolph K Otto
- Department of Radiology, University of Washington and Seattle Children's Hospital, 4800 Sand Point Way NE, Seattle, WA, 98105, USA
| | - Mark R Ferguson
- Department of Radiology, University of Washington and Seattle Children's Hospital, 4800 Sand Point Way NE, Seattle, WA, 98105, USA
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Bindschadler M, Buddhe S, Ferguson MR, Jones T, Friedman SD, Otto RK. HEARTBEAT4D: An Open-source Toolbox for Turning 4D Cardiac CT into VR/AR. J Digit Imaging 2022; 35:1759-1767. [PMID: 35614275 PMCID: PMC9712868 DOI: 10.1007/s10278-022-00659-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 04/20/2022] [Accepted: 05/18/2022] [Indexed: 11/30/2022] Open
Abstract
Four-dimensional data sets are increasingly common in MRI and CT. While clinical visualization often focuses on individual temporal phases capturing the tissue(s) of interest, it may be possible to gain additional insight through exploring animated 3D reconstructions of physiological motion made possible by augmented or virtual reality representations of 4D patient imaging. Cardiac CT acquisitions can provide sufficient spatial resolution and temporal data to support advanced visualization, however, there are no open-source tools readily available to facilitate the transformation from raw medical images to dynamic and interactive augmented or virtual reality representations. To address this gap, we developed a workflow using free and open-source tools to process 4D cardiac CT imaging starting from raw DICOM data and ending with dynamic AR representations viewable on a phone, tablet, or computer. In addition to assembling the workflow using existing platforms (3D Slicer and Unity), we also contribute two new features: 1. custom software which can propagate a segmentation created for one cardiac phase to all others and export to surface files in a fully automated fashion, and 2. a user interface and linked code for the animation and interactive review of the surfaces in augmented reality. Validation of the surface-based areas demonstrated excellent correlation with radiologists' image-based areas (R > 0.99). While our tools were developed specifically for 4D cardiac CT, the open framework will allow it to serve as a blueprint for similar applications applied to 4D imaging of other tissues and using other modalities. We anticipate this and related workflows will be useful both clinically and for educational purposes.
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Affiliation(s)
- M Bindschadler
- Department of Neurology, Seattle, WA, USA
- Department of Radiology, Seattle Childrens, Seattle, WA, USA
| | - S Buddhe
- Department of Pediatrics, Seattle Children's Heart Center and the University of Washington, Seattle, WA, USA
| | - M R Ferguson
- Department of Radiology, University of Washington, Seattle, WA, USA
- Department of Radiology, Seattle Childrens, Seattle, WA, USA
| | - T Jones
- Department of Pediatrics, Seattle Children's Heart Center and the University of Washington, Seattle, WA, USA
| | - S D Friedman
- Department of Neurology, Seattle, WA, USA
- Department of Improvement and Innovation, Seattle, WA, USA
| | - R K Otto
- Department of Radiology, University of Washington, Seattle, WA, USA.
- Department of Radiology, Seattle Childrens, Seattle, WA, USA.
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5
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Schwarzenberg SJ, Palermo JJ, Ye W, Huang S, Magee JC, Alazraki A, Jay Freeman A, Harned R, Karmazyn B, Karnsakul W, Leung DH, Ling SC, Masand P, Molleston JP, Murray KF, Navarro OM, Nicholas JL, Otto RK, Paranjape SM, Siegel MJ, Stoll J, Towbin AJ, Narkewicz MR, Alonso EM. Health-related Quality of Life in a Prospective Study of Ultrasound to Detect Cystic Fibrosis-related Liver Disease in Children. J Pediatr Gastroenterol Nutr 2022; 75:635-642. [PMID: 36070552 PMCID: PMC9624376 DOI: 10.1097/mpg.0000000000003605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVES Cystic fibrosis liver disease (CFLD) begins early in life. Symptoms may be vague, mild, or nonexistent. Progressive liver injury may be associated with decrements in patient health before liver disease is clinically apparent. We examined Health-Related Quality of Life (HRQOL) in children enrolled in a multi-center study of CFLD to determine the impact of early CFLD on general and disease-specific QOL. METHODS Ultrasound (US) patterns of normal (NL), heterogeneous (HTG), homogeneous (HMG), or nodular (NOD) were assigned in a prospective manner to predict those at risk for advanced CFLD. Parents were informed of results. We assessed parent/child-reported (age ≥5 years) HRQOL by PedsQL 4.0 Generic Core and CF Questionnaire-revised (CFQ-R) prior to US and annually. HRQOL scores were compared by US pattern at baseline (prior to US), between baseline and 1 year and at 5 years. Multivariate analysis of variance (MANOVA) with Hotelling-Lawley trace tested for differences among US groups. RESULTS Prior to US, among 515 participants and their parents there was no evidence that HTG or NOD US was associated with reduced PedsQL/CFQ-R at baseline. Parents of NOD reported no change in PedsQL/CFQ-R over the next year. Child-report PedsQL/CFQ-R (95 NL, 20 NOD) showed improvement between baseline and year 5 for many scales, including Physical Function. Parents of HMG children reported improved CFQ-R scores related to weight. CONCLUSIONS Early undiagnosed or pre-symptomatic liver disease had no impact on generic or disease-specific HRQoL, and HRQoL was remarkably stable in children with CF regardless of liver involvement.
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Affiliation(s)
- Sarah Jane Schwarzenberg
- Pediatric Gastroenterology, Hepatology and Nutrition, University of Minnesota Masonic Children’s Hospital, Minneapolis, MN
| | - Joseph J. Palermo
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, and Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH
| | - Wen Ye
- Department of Biostatistics, University of Michigan Medical School, Ann Arbor, MI
| | - Suiyuan Huang
- Department of Biostatistics, University of Michigan Medical School, Ann Arbor, MI
| | - John C. Magee
- Department of Surgery, University of Michigan Medical School, Ann Arbor, MI
| | - Adina Alazraki
- Department of Radiology, Emory University School of Medicine and Children’s Healthcare of Atlanta, Egleston, Atlanta, GA
| | - A. Jay Freeman
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Emory University School of Medicine, and Children’s Healthcare of Atlanta, Atlanta, GA
| | - Roger Harned
- Division of Pediatric Radiology, Children’s Hospital Colorado and University of Colorado School of Medicine, Aurora, CO
| | - Boaz Karmazyn
- Pediatric Radiology, Riley Hospital for Children, Indianapolis, IN
| | - Wikrom Karnsakul
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, John Hopkins School of Medicine, Baltimore, MD
| | - Daniel H. Leung
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Texas Children’s Hospital, Houston TX
| | - Simon C. Ling
- Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Department of Pediatrics, University of Toronto, Toronto, Canada
| | - Prakash Masand
- Division Radiology, Texas Children’s Hospital, Houston TX
| | - Jean P. Molleston
- Pediatric Gastroenterology, Hepatology and Nutrition, Riley Hospital for Children, Indiana University School of Medicine, Indianapolis, IN
| | - Karen F. Murray
- Pediatric Institute, Cleveland Clinic and Cleveland Clinic Children’s, Cleveland, OH
| | - Oscar M. Navarro
- Department of Medical Imaging, University of Toronto and Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Jennifer L. Nicholas
- Division of Pediatric Radiology, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine
| | - Randolph K. Otto
- Department of Radiology, Seattle Children’s Hospital, Seattle, WA
| | - Shruti M. Paranjape
- Division of Pediatric Pulmonology, John Hopkins School of Medicine, Baltimore, MD
| | - Marilyn J. Siegel
- Division of Pediatric Radiology, University Hospitals Cleveland Medical Center, Case Western Reserve University School of Medicine
| | - Janis Stoll
- Division of Gastroenterology and Nutrition, Washington University School of Medicine, St Louis, MO
| | - Alexander J. Towbin
- Department of Radiology, Cincinnati Children’s Hospital Medical Center and Department of Radiology, University of Cincinnati College of Medicine, Cincinnati, OH
| | - Michael R. Narkewicz
- Digestive Health Institute, Children’s Hospital Colorado and Section of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
| | - Estella M. Alonso
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Ann & Robert H. Lurie Children’s Hospital, Chicago, IL
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6
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Leung DH, Ye W, Schwarzenberg SJ, Freeman AJ, Palermo JJ, Weymann A, Alonso EM, Karnsakul WW, Murray KF, Stoll JM, Huang S, Karmazyn B, Masand P, Magee JC, Alazraki AL, Towbin AJ, Nicholas JL, Green N, Otto RK, Siegel MJ, Ling SC, Navarro OM, Harned RK, Narkewicz MR, Molleston JP. Long-term follow-up and liver outcomes in children with cystic fibrosis and nodular liver on ultrasound in a multi-center study. J Cyst Fibros 2022; 22:248-255. [PMID: 35985930 DOI: 10.1016/j.jcf.2022.07.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/30/2022] [Accepted: 07/29/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Nodular liver (NOD) in cystic fibrosis (CF) suggests advanced CF liver disease (aCFLD); little is known about progression of liver disease (LD) after detection of sonographic NOD. METHODS Clinical, laboratory, and ultrasound (US) data from Prediction by Ultrasound of the Risk of Hepatic Cirrhosis in CFLD Study participants with NOD at screening or follow-up were compared with normal (NL). Linear mixed effects models were used for risk factors for LD progression and Kaplan-Meier estimator for time-to-event. RESULTS 54 children with NOD (22 screening, 32 follow-up) and 112 NL were evaluated. Baseline (BL) and trajectory of forced expiratory volume, forced vital capacity, height/BMI z-scores were similar in NOD vs NL. Platelets were lower in NOD at BL (250 vs 331×103/microL; p < 0.001) and decreased by 8600/year vs 2500 in NL. Mean AST to Platelet Ratio Index (1.1 vs 0.4; p < 0.001), Fibrosis-4 Index (0.4 vs 0.2, p < 0.001), and spleen size z-score (SSZ) [1.5 vs 0.02; p < 0.001] were higher in NOD at BL; SSZ increased by 0.5 unit/year in NOD vs 0.1 unit/year in NL. Median liver stiffness (LSM) by transient elastography was higher in NOD (8.2 kPa, IQR 6-11.8) vs NL (5.3, 4.2-7, p < 0.0001). Over 6.3 years follow-up (1.3-10.3), 6 NOD had esophageal varices (cumulative incidence in 10 years: 20%; 95% CI: 0.0%, 40.0%), 2 had variceal bleeding, and 2 underwent liver transplantation; none had ascites or hepatic encephalopathy. No NL experienced liver-related events. CONCLUSIONS NOD developed clinically evident portal hypertension faster than NL without worse growth or lung disease.
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Key Words
- ALT, alanine aminotransferase
- APRI, aspartate aminotransferase to platelet ratio index
- AST, aminotransferase
- CAP, continuous attenuation parameter
- CFRD, cystic-fibrosis-related diabetes
- CFTR, cystic fibrosis transmembrane regulator
- Cirrhosis
- Cystic fibrosis liver disease
- FEV1, forced expiratory volume in one second
- FIB4, fibrosis index based on four factors
- FVC, forced vital capacity
- GGT, gamma-glutamyl transferase
- IGT, impaired glucose tolerance
- INR, international normalized ratio
- LSM, liver stiffness measurement
- NL, normal
- NOD, nodular
- PELD, pediatric end-stage liver disease
- PUSH, prediction by ultrasound of the risk of hepatic cirrhosis
- US, ultrasound
- Ultrasound
- VCTE, vibration controlled transient elastography
- WBC, white blood cell count
- abbreviations: CF, cystic fibrosis
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Affiliation(s)
- Daniel H Leung
- Department of Pediatrics, Baylor College of Medicine, Division of Gastroenterology, Hepatology and Nutrition, Texas Children's Hospital, 6621 Fannin St, CCC 1010.00, Houston, TX 77030, USA
| | - Wen Ye
- Department of Biostatistics, University of Michigan, 1420 Washington Heights, M4073 SPH II, Ann Arbor, MI 48109, USA
| | - Sarah J Schwarzenberg
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology and Nutrition, University of Minnesota, 2450 Riverside Save S AO-201, Minneapolis, MN 55454, USA
| | - A Jay Freeman
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology and Nutrition, Children's Healthcare of Atlanta, Emory University, 2015 Uppergate Drive, NE, Atlanta, GA 30322, USA
| | - Joseph J Palermo
- Department of Pediatrics, Division of Gastroenterology, University of Cincinnati College of Medicine, 3333 Burnet Avenue, MLC 2010, Cincinnati, OH 45229, USA
| | - Alexander Weymann
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology and Nutrition, The Ohio State University College of Medicine, 700 Children's Drive, Columbus, OH 43205, USA
| | - Estella M Alonso
- Department of Pediatrics, Pediatric Gastroenterology, Hepatology and Nutrition, Northwestern University Feinberg School of Medicine, 225 E. Chicago Avenue, Box 57, Chicago, IL 60611, USA
| | - Wikrom W Karnsakul
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology and Nutrition, Johns Hopkins University School of Medicine, 600 N Wolfe Street, CMSC-2, Baltimore, MD 21287, USA
| | - Karen F Murray
- Pediatric Institute and Cleveland Clinic Children's, Cleveland Clinic, 8950 Euclid Avenue, R3, Cleveland, OH 44195, USA
| | - Janis M Stoll
- Department of Pediatrics, Division of Gastroenterology, Pediatric Hepatology and Nutrition, Washington University School of Medicine in St. Louis, One Children's Place, Suite 8116, St. Louis, MO 63110, USA
| | - Suiyuan Huang
- Department of Biostatistics, University of Michigan, 1420 Washington Heights, M4073 SPH II, Ann Arbor, MI 48109, USA
| | - Boaz Karmazyn
- Department of Radiology and Imaging Sciences, Indiana University School of Medicine, 550 N. University Blvd, Rm 0663, Indianapolis, IN 46202, USA
| | - Prakash Masand
- Department of Pediatrics, Baylor College of Medicine, Division of Gastroenterology, Hepatology and Nutrition, Texas Children's Hospital, 6621 Fannin St, CCC 1010.00, Houston, TX 77030, USA
| | - John C Magee
- Department of Surgery, University of Michigan School of Medicine, 1500 E Medical Center Drive, UH South Rm 6689, Ann Arbor, MI 48109, USA
| | - Adina L Alazraki
- Department of Radiology, Children's Healthcare of Atlanta, Emory University, 1405 Clifton Rd NE, Atlanta, GA 30322, USA
| | - Alexander J Towbin
- Department of Radiology, University of Cincinnati College of Medicine, 234 Goodman Street, PO Box 670761, Cincinnati, OH 45267, USA
| | - Jennifer L Nicholas
- Department of Radiology, Division of Pediatric Imaging, Case Western Reserve University School of Medicine, 10900 Euclid Avenue, Cleveland, OH 44106, USA
| | - Nicole Green
- Department of Pediatrics, Division of Gastroenterology and Hepatology, Seattle Children's Hospital, 4800 Sand Point Way NE, PO Box 5371, Seattle, WA 98105, USA
| | - Randolph K Otto
- Department of Radiology, Seattle Children's Hospital, 4800 Sand Point Way NE, MA.7.220, Seattle, WA 98105, USA
| | - Marilyn J Siegel
- Edward Mallinckrodt Institute of Radiology, Washington University School of Medicine, 510 South Kingshighway Blvd, St. Louis, MO 63110, USA
| | - Simon C Ling
- Department of Paediatrics, Division of Gastroenterology, Hepatology and Nutrition, University of Toronto, 555 University Ave ON, Toronto, M5G 1X8, Canada
| | - Oscar M Navarro
- Department of Diagnostic Imaging, Division of Pediatric Imaging, University of Toronto, 263 McCaul St 4th floor, Toronto, ON M5T 1W7, Canada
| | - Roger K Harned
- Department of Radiology-Diagnostics, University of Colorado School of Medicine, 13123 East 16th Avenue, B125, Aurora, CO 80045, USA
| | - Michael R Narkewicz
- Department of Pediatrics, Section of Pediatric Gastroenterology, Hepatology and Nutrition, Digestive Health Institute, Children's Hospital Colorado, University of Colorado School of Medicine, 13123 East 16th Avenue, B290, Aurora, CO 80045, USA
| | - Jean P Molleston
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology and Nutrition, Riley Hospital for Children at IU Health, Indiana University School of Medicine, 705 Riley Hospital Drive, ROC 4210, Indianapolis, IN 46202, USA.
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7
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Ye W, Leung DH, Molleston JP, Ling SC, Murray KF, Nicholas JL, Huang S, Karmazyn BW, Harned RK, Masand P, Alazraki AL, Navarro OM, Otto RK, Palermo JJ, Towbin AJ, Alonso EM, Karnsakul WW, Jane Schwarzenberg S, Seidel GF, Siegel M, Magee JC, Narkewicz MR, Jay Freeman A. Association Between Transient Elastography and Controlled Attenuated Parameter and Liver Ultrasound in Children With Cystic Fibrosis. Hepatol Commun 2021; 5:1362-1372. [PMID: 34430781 PMCID: PMC8369935 DOI: 10.1002/hep4.1719] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 02/14/2021] [Accepted: 03/01/2021] [Indexed: 02/04/2023] Open
Abstract
Methods to identify children with cystic fibrosis (CF) at risk for development of advanced liver disease are lacking. We aim to determine the association between liver stiffness measurement (LSM) by vibration-controlled transient elastography (VCTE) with research ultrasound (US) patterns and conventional hepatic markers as a potential means to follow liver disease progression in children with CF. ELASTIC (Longitudinal Assessment of Transient Elastography in CF) is a nested cohort of 141 patients, ages 7-21, enrolled in the Prediction by US of Risk of Hepatic Cirrhosis in CF (PUSH) Study. We studied the association between LSM with research-grade US patterns (normal [NL], heterogeneous [HTG], homogeneous [HMG], or nodular [NOD]) and conventional hepatic markers. In a subgroup (n = 79), the association between controlled attenuation parameter (CAP) and US pattern was explored. Among 133 subjects undergoing VCTE, NOD participants (n = 26) had a significantly higher median (interquartile range) LSM of 9.1 kPa (6.3, 15.8) versus NL (n = 72, 5.1 kPa [4.2, 7.0]; P < 0.0001), HMG (n = 17, 5.9 kPa [5.2, 7.8]; P = 0.0013), and HTG (n = 18, 6.1 kPa [4.7, 7.0]; P = 0.0008) participants. HMG participants (n = 14) had a significantly higher mean CAP (SD) (270.5 dB/m [61.1]) compared with NL (n = 40, 218.8 dB/m [46.5]; P = 0.0027), HTG (n = 10, 218.1 dB/m [60.7]; P = 0.044), and NOD (n = 15, 222.7 dB/m [56.4]; P = 0.041) participants. LSM had a negative correlation with platelet count (rs = - 0.28, P = 0.0071) and positive correlation with aspartate aminotransferase-to-platelet ratio index (rs = 0.38, P = 0.0002), Fibrosis-4 index (rs = 0.36, P = 0.0007), gamma-glutamyltransferase (GGT; rs = 0.35, P = 0.0017), GGT-to-platelet ratio (rs = 0.35, P = 0.003), and US spleen size z-score (rs = 0.27, P = 0.0073). Conclusion: VCTE is associated with US patterns and conventional markers in patients with liver disease with CF.
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Affiliation(s)
- Wen Ye
- Department of BiostatisticsUniversity of Michigan School of Public HealthAnn ArborMIUSA
| | - Daniel H Leung
- Division of Gastroenterology, Hepatology and NutritionDepartment of PediatricsTexas Children's HospitalBaylor College of MedicineHoustonTXUSA
| | - Jean P Molleston
- Pediatric Gastroenterology, Hepatology and NutritionRiley Hospital for Children at IU HealthIndiana University School of MedicineIndianapolisINUSA
| | - Simon C Ling
- The Hospital for Sick ChildrenDepartment of PediatricsUniversity of TorontoTorontoONCanada
| | - Karen F Murray
- Division of Gastroenterology and HepatologyUniversity of Washington and Seattle Children's HospitalSeattleWAUSA
| | - Jennifer L Nicholas
- Mallinckrodt Institute of RadiologyWashington University School of MedicineSt. LouisMOUSA
| | - Suiyuan Huang
- Department of BiostatisticsUniversity of Michigan School of Public HealthAnn ArborMIUSA
| | - Boaz W Karmazyn
- Pediatric RadiologyRiley Hospital for Children at IU HealthIndiana University School of MedicineIndianapolisINUSA
| | - Roger K Harned
- Division of Pediatric RadiologyChildren's Hospital Colorado and University of Colorado School of MedicineAuroraCOUSA
| | - Prakash Masand
- Division of RadiologyTexas Children's HospitalHoustonTXUSA
| | - Adina L Alazraki
- Department of RadiologyEmory University School of Medicine and Children's Healthcare of AtlantaAtlantaGAUSA
| | - Oscar M Navarro
- Department of Medical ImagingUniversity of TorontoTorontoONCanada.,Department of Diagnostic ImagingThe Hospital for Sick ChildrenTorontoONCanada
| | - Randolph K Otto
- Department of RadiologyUniversity of Washington and Seattle Children's HospitalSeattleWAUSA
| | - Joseph J Palermo
- Division of Pediatric Gastroenterology, Hepatology and NutritionCincinnati Children's Hospital Medical CenterCincinnatiOHUSA.,Department of PediatricsUniversity of Cincinnati College of MedicineCincinnatiOHUSA
| | - Alexander J Towbin
- Department of RadiologyCincinnati Children's Hospital Medical CenterCincinnatiOHUSA.,Department of RadiologyUniversity of Cincinnati College of MedicineCincinnatiOHUSA
| | - Estella M Alonso
- Division of Pediatric Gastroenterology, Hepatology and NutritionAnn & Robert H. Lurie Children's HospitalChicagoILUSA
| | - Wikrom W Karnsakul
- Division of Pediatric Gastroenterology, Hepatology and NutritionJohn Hopkins School of MedicineBaltimoreMDUSA
| | | | - Glenn F Seidel
- Pediatric RadiologyLucile Packard Children's HospitalPalo AltoCAUSA
| | - Marilyn Siegel
- Mallinckrodt Institute of RadiologyWashington University School of MedicineSt. LouisMOUSA
| | - John C Magee
- Department of SurgeryUniversity of Michigan Medical SchoolAnn ArborMIUSA
| | - Michael R Narkewicz
- Digestive Health InstituteChildren's Hospital Colorado and Section of Pediatric Gastroenterology, Hepatology and NutritionDepartment of PediatricsUniversity of Colorado School of MedicineAuroraCOUSA
| | - A Jay Freeman
- Division of Pediatric Gastroenterology, Hepatology and NutritionEmory University School of Medicine/Children's Healthcare of AtlantaAtlantaGAUSA
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8
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Khalatbari H, Menashe SJ, Otto RK, Hoke AC, Stanescu AL, Maloney EJ, Iyer RS. Clarifying radiology's role in safety events: a 5-year retrospective common cause analysis of safety events at a pediatric hospital. Pediatr Radiol 2020; 50:1409-1420. [PMID: 32681235 DOI: 10.1007/s00247-020-04711-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/08/2020] [Accepted: 05/10/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Common cause analysis of hospital safety events that involve radiology can identify opportunities to improve quality of care and patient safety. OBJECTIVE To study the most frequent system failures as well as key activities and processes identified in safety events in an academic children's hospital that underwent root cause analysis and in which radiology was determined to play a contributing role. MATERIALS AND METHODS All safety events involving diagnostic or interventional radiology from April 2013 to November 2018, for which the hospital patient safety department conducted root cause analysis, were retrospectively analyzed. Pareto charts were constructed to identify the most frequent modalities, system failure modes, key processes and key activities. RESULTS In 19 safety events, 64 sequential interactions were attributed to the radiology department by the patient safety department. Five of these safety events were secondary to diagnostic errors. Interventional radiology, radiography and diagnostic fluoroscopy accounted for 89.5% of the modalities in these safety events. Culture and process accounted for 55% of the system failure modes. The three most common key processes involved in these sequential interactions were diagnostic (39.1%) and procedural services (25%), followed by coordinating care and services (18.8%). The two most common key activities were interpreting/analyzing (21.9%) and coordinating activities (15.6%). CONCLUSION Proposing and implementing solutions based on the analysis of a single safety event may not be a robust strategy for process improvement. Common cause analyses of safety events allow for a more robust understanding of system failures and have the potential to generate more specific process improvement strategies to prevent the reoccurrence of similar errors. Our analysis demonstrated that the most common system failure modes in safety events attributed to radiology were culture and process. However, the generalizability of these findings is limited given our small sample size. Aligning with other children's hospitals to use standard safety event terminology and shared databases will likely lead to greater clarity on radiology's direct and indirect contributions to patient harm.
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Affiliation(s)
- Hedieh Khalatbari
- Department of Radiology, Seattle Children's Hospital, University of Washington School of Medicine, 4800 Sand Point Way NE, MA.7.220, Seattle, WA, 98105, USA.
| | - Sarah J Menashe
- Department of Radiology, Seattle Children's Hospital, University of Washington School of Medicine, 4800 Sand Point Way NE, MA.7.220, Seattle, WA, 98105, USA
| | - Randolph K Otto
- Department of Radiology, Seattle Children's Hospital, University of Washington School of Medicine, 4800 Sand Point Way NE, MA.7.220, Seattle, WA, 98105, USA
| | - Amy C Hoke
- Patient Safety Department, Seattle Children's Hospital, Seattle, WA, USA
| | - A Luana Stanescu
- Department of Radiology, Seattle Children's Hospital, University of Washington School of Medicine, 4800 Sand Point Way NE, MA.7.220, Seattle, WA, 98105, USA
| | - Ezekiel J Maloney
- Department of Radiology, Seattle Children's Hospital, University of Washington School of Medicine, 4800 Sand Point Way NE, MA.7.220, Seattle, WA, 98105, USA
| | - Ramesh S Iyer
- Department of Radiology, Seattle Children's Hospital, University of Washington School of Medicine, 4800 Sand Point Way NE, MA.7.220, Seattle, WA, 98105, USA
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9
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Perez FA, Hottinger DG, Evans KN, Giles M, Otto RK, Hunyady A, Gentry KR. Longer upper airway lengths in Robin Sequence: A case-control study using computed tomography. Paediatr Anaesth 2020; 30:683-690. [PMID: 32277728 DOI: 10.1111/pan.13869] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 02/29/2020] [Accepted: 03/23/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Direct laryngoscopy and intubation are often difficult in children with Robin Sequence. Previous research characterizing anatomic airway differences has focused on parameters influencing airway patency; there is a paucity of data pertaining to intubation trajectories and depth. Such information could impact airway management approaches and decrease the incidence of endotracheal tube malpositioning. AIM The study goal was to examine whether longitudinal airway parameters pertaining to intubation are different in children with Robin Sequence compared with age-matched controls. METHOD This case-control study compared patients with RS <4 years of age who had computed tomography scans of the head and neck to age- and sex-matched controls. Measurements were made of the nasopharynx, oropharynx, hypopharynx, tongue, hyoid, and the front teeth to vocal cord, nares to vocal cord, and nasion-basion distances. Statistical analysis was performed using multiple ANCOVA models with the categorical predictor of Robin Sequence vs control and potential covariates including subject height/length, weight, and age. RESULTS Thirty-three patients with Robin Sequence and 33 control subjects were included. After controlling for subject height/length, mean front teeth to vocal cord distance was 1.2 cm longer (95% CI: 0.9 to 1.6 cm, P < .001) and mean nares to vocal cord distance was 0.8 cm longer (95% CI: 0.4 to 1.2 cm, P < .001) in patients with Robin Sequence than in controls. The tongue was positioned on average 0.5 cm higher (95% CI: 0.3 to 0.8, P < .001) and 0.9 cm more posterior (95% CI: 0.6 to 1.0 cm, P < .001) in cases than in controls. Moreover, in patients with Robin Sequence, the hyoid was positioned on average 0.5 cm more inferiorly (95% CI: 0.2 to 0.8 cm, P < .001) and 0.2 cm more posteriorly (95% CI: 0.1 to 0.4 cm, P < .01) than controls. CONCLUSION In patients with Robin Sequence under 4 years of age, the mean front teeth to vocal cord distance was found to be 1.2 cm longer while the mean nares to vocal cord distance was found to be 0.8 cm longer controlling for subject length. Clinicians should account for these differences when selecting and placing endotracheal tubes, particularly those with a preformed bend.
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Affiliation(s)
- Francisco A Perez
- Department of Radiology, Seattle Children's Hospital and University of Washington School of Medicine, Seattle, WA, USA
| | | | - Kelly N Evans
- Department of Pediatrics, Division of Craniofacial Medicine, University of Washington School of Medicine, Seattle, WA, USA
| | - Marian Giles
- Department of Anesthesiology and Pain Medicine, University of Washington School of Medicine, Seattle, WA, USA
| | - Randolph K Otto
- Department of Radiology, Seattle Children's Hospital and University of Washington School of Medicine, Seattle, WA, USA
| | - Agnes Hunyady
- Department of Anesthesiology and Pain Medicine, Division of Pediatric Anesthesiology, University of Washington School of Medicine, Seattle, WA, USA
| | - Katherine R Gentry
- Department of Anesthesiology and Pain Medicine, Division of Pediatric Anesthesiology, University of Washington School of Medicine, Seattle, WA, USA
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10
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Siegel MJ, Freeman AJ, Ye W, Palermo JJ, Molleston JP, Paranjape SM, Stoll J, Leung D, Masand P, Karmazyn B, Harned R, Ling SC, Navarro OM, Karnsakul W, Alazraki A, Schwarzenberg SJ, Seidel FG, Towbin A, Alonso EM, Nicholas JL, Murray KF, Otto RK, Sherker AH, Magee JC, Narkewicz MR. Heterogeneous Liver on Research Ultrasound Identifies Children with Cystic Fibrosis at High Risk of Advanced Liver Disease: Interim Results of a Prospective Observational Case-Controlled Study. J Pediatr 2020; 219:62-69.e4. [PMID: 32061406 PMCID: PMC7096278 DOI: 10.1016/j.jpeds.2019.12.033] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/21/2019] [Accepted: 12/13/2019] [Indexed: 02/06/2023]
Abstract
OBJECTIVE To assess if a heterogeneous pattern on research liver ultrasound examination can identify children at risk for advanced cystic fibrosis (CF) liver disease. STUDY DESIGN Planned 4-year interim analysis of a 9-year multicenter, case-controlled cohort study (Prospective Study of Ultrasound to Predict Hepatic Cirrhosis in CF). Children with pancreatic insufficient CF aged 3-12 years without known cirrhosis, Burkholderia species infection, or short bowel syndrome underwent a screening research ultrasound examination. Participants with a heterogeneous liver ultrasound pattern were matched (by age, Pseudomonas infection status, and center) 1:2 with participants with a normal pattern. Clinical status and laboratory data were obtained annually and research ultrasound examinations biannually. The primary end point was the development of a nodular research ultrasound pattern, a surrogate for advanced CF liver disease. RESULTS There were 722 participants who underwent screening research ultrasound examination, of which 65 were heterogeneous liver ultrasound pattern and 592 normal liver ultrasound pattern. The final cohort included 55 participants with a heterogeneous liver ultrasound pattern and 116 participants with a normal liver ultrasound pattern. All participants with at least 1 follow-up research ultrasound were included. There were no differences in age or sex between groups at entry. Alanine aminotransferase (42 ± 22 U/L vs 32 ± 19 U/L; P = .0033), gamma glutamyl transpeptidase (36 ± 34 U/L vs 15 ± 8 U/L; P < .001), and aspartate aminotransferase to platelet ratio index (0.7 ± 0.5 vs 0.4 ± 0.2; P < .0001) were higher in participants with a heterogeneous liver ultrasound pattern compared with participants with a normal liver ultrasound pattern. Participants with a heterogeneous liver ultrasound pattern had a 9.1-fold increased incidence (95% CI, 2.7-30.8; P = .0004) of nodular pattern vs a normal liver ultrasound pattern (23% in heterogeneous liver ultrasound pattern vs 2.6% in normal liver ultrasound pattern). CONCLUSIONS Research liver ultrasound examinations can identify children with CF at increased risk for developing advanced CF liver disease.
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Affiliation(s)
- Marilyn J Siegel
- Mallinckrodt Institute of Radiology, Washington
University School of Medicine, St Louis, MO
| | - A Jay Freeman
- Division of Pediatric Gastroenterology, Hepatology and
Nutrition, Emory University School of Medicine, Atlanta, GA
| | - Wen Ye
- Department of Biostatistics, University of Michigan
Medical School, Ann Arbor, MI
| | - Joseph J Palermo
- Division of Pediatric Gastroenterology, Hepatology and
Nutrition, Cincinnati Children’s Hospital Medical Center, and Department of
Pediatrics, University of Cincinnati College of Medicine, Cincinnati OH
| | - Jean P Molleston
- Pediatric Gastroenterology, Hepatology and Nutrition,
Riley Hospital for Children, Indiana University School of Medicine, Indianapolis,
IN
| | - Shruti M Paranjape
- Division of Pediatric Pulmonology, John Hopkins School of
Medicine, Baltimore, MD
| | - Janis Stoll
- Division of Gastroenterology and Nutrition, Washington
University School of Medicine, St Louis, MO
| | - Daniel Leung
- Division of Gastroenterology, Hepatology and Nutrition,
Texas Children’s Hospital, Houston TX
| | - Prakash Masand
- Division of Radiology, Texas Children’s Hospital,
Houston TX
| | - Boaz Karmazyn
- Pediatric Radiology, Riley Hospital for Children,
Indianapolis, IN
| | - Roger Harned
- Division of Pediatric Radiology, Children’s
Hospital Colorado and University of Colorado School of Medicine, Aurora, CO
| | - Simon C Ling
- Division of Gastroenterology, Hepatology and Nutrition,
The Hospital for Sick Children, Department of Paediatrics, University of Toronto,
Toronto, Ontario, Canada
| | - Oscar M Navarro
- Department of Medical Imaging, University of Toronto,
Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario,
Canada
| | - Wikrom Karnsakul
- Division of Pediatric Gastroenterology, Hepatology and
Nutrition, John Hopkins School of Medicine, Baltimore, MD
| | - Adina Alazraki
- Department of Radiology, Emory University School of
Medicine and Children’s Healthcare of Atlanta, Egleston, Atlanta, GA
| | - Sarah Jane Schwarzenberg
- Pediatric Gastroenterology, University of Minnesota
Masonic Children’s Hospital, Minneapolis, MN
| | - F Glen Seidel
- Pediatric Radiology, Lucile Packard Children’s
Hospital, Stanford, CA
| | - Alex Towbin
- Department of Radiology, Cincinnati Children’s
Hospital Medical Center and Department of Radiology, University of Cincinnati
College of Medicine Cincinnati OH
| | - Estella M Alonso
- Division of Pediatric Gastroenterology, Hepatology and
Nutrition, Ann & Robert H. Lurie Children’s Hospital, Chicago IL
| | - Jennifer L. Nicholas
- Mallinckrodt Institute of Radiology, Washington
University School of Medicine, St Louis, MO
| | - Karen F Murray
- Division of Gastroenterology and Hepatology, University
of Washington and Seattle Children’s Hospital, Seattle, WA
| | - Randolph K Otto
- Department of Radiology, Seattle Children’s
Hospital, Seattle, WA
| | | | - John C Magee
- Department of Surgery, University of Michigan Medical
School, Ann Arbor, MI
| | - Michael R Narkewicz
- Digestive Health Institute, Children's Hospital Colorado and Section of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO.
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11
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Maloney E, Stanescu AL, Perez FA, Iyer RS, Otto RK, Leary S, Steuten L, Phipps AI, Shaw DWW. Surveillance magnetic resonance imaging for isolated optic pathway gliomas: is gadolinium necessary? Pediatr Radiol 2018; 48:1472-1484. [PMID: 29789890 DOI: 10.1007/s00247-018-4154-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 02/21/2018] [Accepted: 04/30/2018] [Indexed: 01/09/2023]
Abstract
BACKGROUND Pediatric optic pathway gliomas are typically indolent but have a variable clinical course. Treatment is dictated by symptoms and changes on contrast-enhanced MRI examinations. Gadolinium retention in children has motivated parsimonious use of gadolinium-based contrast agents. OBJECTIVES To determine surveillance MR factors that motivate changes in tumor-directed therapies and extrapolate cost-efficacy of a non-contrast follow-up protocol. MATERIALS AND METHODS Using an imaging database search we identified children with isolated optic pathway gliomas and ≥3 follow-up contrast-enhanced MRIs. We reviewed medical records and imaging for: (1) coincident changes on contrast-enhanced MRI and tumor-directed therapy, (2) demographics and duration of follow-up, (3) motivations for intervention, (4) assessment of gadolinium-based contrast agents' utility and (5) health care utilization data. We assessed cost impact in terms of relative value unit (RVU) burden. RESULTS We included 17 neurofibromatosis type 1 (NF1) and 21 non-NF1 patients who underwent a median 16.9 and 24.3 cumulative contrast-enhanced MR exams over 7.7 years and 8.1 years of follow-up, respectively. Eight children (one with NF1) had intervention based on contrast-enhanced MR findings alone. For these eight, increased tumor size was the only common feature, and it was apparent on non-contrast T2 sequences. For the median patient, a non-contrast follow-up protocol could result in 15.9 (NF1) and 23.3 (non-NF1) fewer gadolinium-based contrast agent administrations, and a 39% lower yearly RVU burden. CONCLUSION Pediatric patients with isolated optic pathway gliomas undergo a large number of routine contrast-enhanced MR follow-up exams. Gadolinium might not be needed for these exams to inform management decisions. Secondary benefits of a non-contrast follow-up protocol include decreased cost and risk to the patient.
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Affiliation(s)
- Ezekiel Maloney
- Department of Radiology,, University of Washington,, Seattle, WA, USA.,Department of Radiology,, Seattle Children's Hospital,, 4800 Sand Point Way NE,, Seattle, WA, 98105, USA
| | - A Luana Stanescu
- Department of Radiology,, University of Washington,, Seattle, WA, USA.,Department of Radiology,, Seattle Children's Hospital,, 4800 Sand Point Way NE,, Seattle, WA, 98105, USA
| | - Francisco A Perez
- Department of Radiology,, University of Washington,, Seattle, WA, USA.,Department of Radiology,, Seattle Children's Hospital,, 4800 Sand Point Way NE,, Seattle, WA, 98105, USA
| | - Ramesh S Iyer
- Department of Radiology,, University of Washington,, Seattle, WA, USA.,Department of Radiology,, Seattle Children's Hospital,, 4800 Sand Point Way NE,, Seattle, WA, 98105, USA
| | - Randolph K Otto
- Department of Radiology,, University of Washington,, Seattle, WA, USA.,Department of Radiology,, Seattle Children's Hospital,, 4800 Sand Point Way NE,, Seattle, WA, 98105, USA
| | - Sarah Leary
- Cancer and Blood Disorders,, University of Washington, Seattle Children's Hospital,, Seattle, WA, USA
| | - Lotte Steuten
- Department of Pharmacy,, University of Washington, Fred Hutchinson Cancer Research Center,, Seattle, WA, USA
| | - Amanda I Phipps
- Department of Epidemiology,, University of Washington School of Public Health,, Seattle, WA, USA
| | - Dennis W W Shaw
- Department of Radiology,, University of Washington,, Seattle, WA, USA. .,Department of Radiology,, Seattle Children's Hospital,, 4800 Sand Point Way NE,, Seattle, WA, 98105, USA.
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12
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Rollins N, Otto RK. Guido C. Currarino, MD, Dec. 17, 1920 - Dec. 20, 2015. Pediatr Radiol 2016; 46:439-40. [PMID: 26825734 DOI: 10.1007/s00247-016-3539-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Accepted: 01/06/2016] [Indexed: 11/21/2022]
Affiliation(s)
- Nancy Rollins
- Department of Radiology, Children's Health System-Texas, University of Texas Southwestern Medical Center, 1935 Medical District Drive, Dallas, TX, 75235, USA.
| | - Randolph K Otto
- Department of Radiology, Seattle Children's Hospital, University of Washington School of Medicine, Seattle, WA, USA
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13
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Abstract
Imaging is crucial in expediting the diagnosis and guiding definitive therapy in children with ovarian torsion. This article reviews the multimodality spectrum of imaging findings in pediatric ovarian torsion, focusing primarily on US appearances. We describe predisposing conditions that can lead to torsion, the pathological basis of the radiologic findings in ovarian torsion, and the common diagnostic pitfalls.
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Affiliation(s)
- Anh-Vu Ngo
- Department of Radiology, Seattle Children's Hospital, University of Washington, 4800 Sand Point Way N.E., Seattle, WA, 98105, USA
| | - Jeffrey P Otjen
- Department of Radiology, Seattle Children's Hospital, University of Washington, 4800 Sand Point Way N.E., Seattle, WA, 98105, USA
| | - Marguerite T Parisi
- Department of Radiology, Seattle Children's Hospital, University of Washington, 4800 Sand Point Way N.E., Seattle, WA, 98105, USA
| | - Mark R Ferguson
- Department of Radiology, Seattle Children's Hospital, University of Washington, 4800 Sand Point Way N.E., Seattle, WA, 98105, USA
| | - Randolph K Otto
- Department of Radiology, Seattle Children's Hospital, University of Washington, 4800 Sand Point Way N.E., Seattle, WA, 98105, USA
| | - A Luana Stanescu
- Department of Radiology, Seattle Children's Hospital, University of Washington, 4800 Sand Point Way N.E., Seattle, WA, 98105, USA.
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14
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Stanescu AL, Parisi MT, Weinberger E, Ferguson MR, Otto RK, Iyer RS. Peer Review: Lessons Learned in A Pediatric Radiology Department. Curr Probl Diagn Radiol 2015; 45:139-48. [PMID: 26489791 DOI: 10.1067/j.cpradiol.2015.09.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 09/05/2015] [Indexed: 12/21/2022]
Abstract
The purpose of this article is to illustrate types of diagnostic errors and feedback given to radiologists, using cases to support and clarify these categories. A comment-enhanced peer review system may be leveraged to generate a comprehensive feedback categorization scheme. These include errors of observation, errors of interpretation, inadequate patient data gathering, errors of communication, interobserver variability, informational feedback, and compliments. Much of this feedback is captured through comments associated with interpretative agreements.
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Affiliation(s)
- A Luana Stanescu
- Department of Radiology, Seattle Children's Hospital, University of Washington, Seattle, WA.
| | - Marguerite T Parisi
- Department of Radiology, Seattle Children's Hospital, University of Washington, Seattle, WA
| | - Edward Weinberger
- Department of Radiology, Seattle Children's Hospital, University of Washington, Seattle, WA
| | - Mark R Ferguson
- Department of Radiology, Seattle Children's Hospital, University of Washington, Seattle, WA
| | - Randolph K Otto
- Department of Radiology, Seattle Children's Hospital, University of Washington, Seattle, WA
| | - Ramesh S Iyer
- Department of Radiology, Seattle Children's Hospital, University of Washington, Seattle, WA
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15
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Hunyady AI, Otto RK, Christensen A, Jonmarker C. Nares-to-carina distance in children: does a 'modified Morgan formula' give useful guidance during nasal intubation? Paediatr Anaesth 2015; 25:936-42. [PMID: 26033678 DOI: 10.1111/pan.12693] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/15/2015] [Indexed: 11/30/2022]
Abstract
BACKGROUND Knowledge of the normal nares-to-carina (NC) distance might prevent accidental bronchial intubation and be helpful when designing preformed endotracheal tubes (ETT). OBJECTIVE The aim was to measure NC distance and to examine whether a height/length-based 'modified Morgan formula' would give useful guidance for nasotracheal ETT depth positioning. METHODS Two groups were studied. A younger group consisted of nasally intubated postoperative patients. In these, NC distance was obtained as the sum of ETT length and the distance from the ETT tip to the carina, as measured from an anteroposterior chest X-ray. An older group consisted of children who had undergone computerized tomography (CT) examination including head, neck, and chest. In these, NC was measured directly from the CT image. The modified Morgan formula was derived from the NC vs height/length relationship. RESULTS Nares-to-carina distance was best predicted by a linear equation based on patient height. The equation in the younger group (1 day-8 years, n = 57) was: NC (cm) = 0.14 × height + 5.8, R(2) = 0.90, and in the older group (2.1-20 years, n = 45): NC (cm) = 0.15 × height + 3.4, R(2) = 0.93. The equation for the groups combined (n = 102) was: NC (cm) = 0.14 × height + 6.2, R(2) = 0.97. Based on the latter equation, a modified Morgan formula was identified as: ETT position at nares in cm = 0.12 × height + 5. If the ETT had been placed as calculated by this formula, the ETT tip would have been at 85 + 5% (mean ± sd) of NC distance, and the ETT tip-to-carina distance would have been 3.1 ± 1.1 cm (range 0-6.6). Bronchial intubation would not have occurred in any child, but a comparison to tracheal length measurements indicates that ETT tip position could be too proximal in some children. CONCLUSION The study confirms previous reports: NC distance can be well predicted from height/length. A modified Morgan formula might decrease the risk for accidental endobronchial intubation in infants and children, but ETT position need to be confirmed by auscultation or other verification.
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Affiliation(s)
- Agnes I Hunyady
- Department of Anesthesiology and Pain Medicine, Seattle Children's Hospital, University of Washington School of Medicine, Seattle, WA, USA
| | - Randolph K Otto
- Department of Radiology, Seattle Children's Hospital, University of Washington School of Medicine, Seattle, WA, USA
| | - Alexis Christensen
- Center for Clinical and Translational Research, Seattle Children's Hospital, Seattle, WA, USA
| | - Christer Jonmarker
- Department of Anesthesiology and Pain Medicine, Seattle Children's Hospital, University of Washington School of Medicine, Seattle, WA, USA
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Purcell PL, Shinn JR, Otto RK, Davis GE, Parikh SR. Nasoseptal flap reconstruction of pediatric sellar defects: a radiographic feasibility study and case series. Otolaryngol Head Neck Surg 2015; 152:746-51. [PMID: 25715351 PMCID: PMC10163894 DOI: 10.1177/0194599815571284] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Accepted: 01/15/2015] [Indexed: 11/17/2022]
Abstract
OBJECTIVES In this study, we used computed tomography measurements to investigate the feasibility of nasoseptal flap reconstruction of sellar defects in children, and we reviewed our institutional experience with the procedure. STUDY DESIGN Cross-sectional and case series. SETTING Pediatric tertiary care facility. METHODS We obtained 10 normal maxillofacial scans for each year of age from birth to 18. Computer-assisted nasal and skull-base measurements were performed. Patients with incomplete pneumatization were excluded from analysis. Reconstruction was presumed feasible if the ratio of nasoseptal flap length to associated sellar defect length was greater than 1. Chart review identified surgical patients. RESULTS Of 190 scans, 125 had complete pneumatization. Of these, 120 (96%) displayed a ratio of nasoseptal flap length to sellar defect length greater than 1, suggesting that reconstruction would be feasible. Mean ratio of flap length to defect length for all subjects was 1.47 (SD 0.33; 95% CI, 1.41-1.53). Only 5 of 125 patients (4%) had a ratio less than 1; the median age for these patients was 15 years, which is older than the median age of 12 years for subjects with a ratio greater than 1 (P = .02). An inverse relationship was identified between age and ratio of flap length to defect length (r = -0.49, P < .001). Case series identified 6 children, ages 5 to 17; flap length was never described as a limitation. CONCLUSIONS Nasoseptal flap length is not a limiting factor for reconstruction of pediatric sellar defects. When compared with older patients, younger patients tend to have greater nasoseptal flap length relative to sellar defect length.
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Affiliation(s)
- Patricia L Purcell
- Department of Otolaryngology, University of Washington, Seattle, Washington, USA
| | - Justin R Shinn
- Department of Otolaryngology, University of Washington, Seattle, Washington, USA
| | - Randolph K Otto
- Department of Radiology, Seattle Children's Hospital, Seattle, Washington, USA
| | - Greg E Davis
- Department of Otolaryngology, University of Washington, Seattle, Washington, USA
| | - Sanjay R Parikh
- Department of Otolaryngology, University of Washington, Seattle, Washington, USA Division of Pediatric Otolaryngology, Seattle Children's Hospital, Seattle, Washington, USA
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Friedman SD, Ishak GE, Poliachik SL, Poliakov AV, Otto RK, Shaw DWW, Willemsen MA, Bok LA, Gospe SM. Callosal alterations in pyridoxine-dependent epilepsy. Dev Med Child Neurol 2014; 56:1106-10. [PMID: 24942048 DOI: 10.1111/dmcn.12511] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/15/2014] [Indexed: 11/30/2022]
Abstract
AIM While there have been isolated reports of callosal morphology differences in pyridoxine-dependent epilepsy (PDE), a rare autosomal disorder caused by ALDH7A1 gene mutations, no study has systematically evaluated callosal features in a large sample of patients. This study sought to overcome this knowledge gap. METHOD Spanning a wide age range from birth to 48 years, corpus callosum morphology and cross-sectional cerebral area were measured in 30 individuals with PDE (12 males, 18 females, median age 3.92y; 25th centile 0.27, 75th centile 15.25) compared to 30 age-matched comparison individuals (11 males, 19 females, median age 3.85y; 25th centile 0.26, 75th centile 16.00). Individuals with PDE were also divided into age groups to evaluate findings across development. As delay to treatment may modulate clinical severity, groups were stratified by treatment delay (less than or greater than 2wks from birth). RESULTS Markedly reduced callosal area expressed as a ratio of mid-sagittal cerebral area was observed for the entire group with PDE (p<0.001). Stratifying by age (<1y, 1-10y, >10y) demonstrated posterior abnormalities to be a consistent feature, with anterior regions increasingly involved across the developmental trajectory. Splitting the PDE group by treatment lag did not reveal overall or sub-region callosal differences. INTERPRETATION Callosal abnormalities are a common feature of PDE not explained by treatment lag. Future work utilizing tract-based approaches to understand inter- and intra-hemispheric connectivity patterns will help in the better understanding the structural aspects of this disease.
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Affiliation(s)
- Seth D Friedman
- Department of Radiology, Seattle Children's Hospital, Seattle, WA, USA
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Friedman SD, Poliachik SL, Otto RK, Carter GT, Budech CB, Bird TD, Miller DG, Shaw DWW. Longitudinal features of STIR bright signal in FSHD. Muscle Nerve 2014; 49:257-60. [PMID: 23720194 DOI: 10.1002/mus.23911] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Revised: 04/26/2013] [Accepted: 05/13/2013] [Indexed: 12/25/2022]
Abstract
INTRODUCTION Magnetic resonance imaging of muscle shows short tau-inversion recovery (STIR) brightness in autosomal dominant facioscapulohumeral muscular dystrophy (FSHD1) suggestive of active inflammation/injury. We measured the longitudinal stability/progression of this potential disease biomarker. METHODS Nine subjects underwent calf MRI imaging over 2 years. Two radiologists evaluated qualitative muscle changes. RESULTS In 3/9 subjects, calf muscles demonstrated moderate/severe STIR hyperintensity at Time 1 that had progressed to fatty replacement 2 years later (Time 2). In the remaining subjects, moderate/severe muscle STIR abnormalities, when present, were consistent between exams. Mild STIR+ elevations had roughly similar patterns between exams. CONCLUSIONS Moderate/severe STIR hyperintensities often foreshadow fatty replacement over a 2-year interval. Whether longer time courses are required to observe muscle degeneration and fatty replacement in some subjects remains to be explored.
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Affiliation(s)
- Randolph K Otto
- Department of Radiology, Seattle Children's Hospital, Seattle, WA, USA.
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Friedman SD, Baker LD, Borson S, Jensen JE, Barsness SM, Craft S, Merriam GR, Otto RK, Novotny EJ, Vitiello MV. Growth hormone-releasing hormone effects on brain γ-aminobutyric acid levels in mild cognitive impairment and healthy aging. JAMA Neurol 2013; 70:883-90. [PMID: 23689947 DOI: 10.1001/jamaneurol.2013.1425] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
IMPORTANCE Growth hormone-releasing hormone (GHRH) has been previously shown to have cognition-enhancing effects. The role of neurotransmitter changes, measured by proton magnetic resonance spectroscopy, may inform the mechanisms for this response. OBJECTIVE To examine the neurochemical effects of GHRH in a subset of participants from the parent trial. DESIGN Randomized, double-blind, placebo-controlled substudy of a larger trial. SETTING Clinical research unit at the University of Washington School of Medicine. PARTICIPANTS Thirty adults (17 with mild cognitive impairment [MCI]), ranging in age from 55 to 87 years, were enrolled and successfully completed the study. INTERVENTIONS Participants self-administered daily subcutaneous injections of tesamorelin (Theratechnologies Inc), a stabilized analogue of human GHRH (1 mg/d), or placebo 30 minutes before bedtime for 20 weeks. At baseline and weeks 10 and 20, participants underwent brain magnetic resonance imaging and spectroscopy protocols and cognitive testing and provided blood samples after fasting. Participants also underwent glucose tolerance tests before and after intervention. MAIN OUTCOMES AND MEASURES Brain levels of glutamate, inhibitory transmitters γ-aminobutyric acid (GABA) and N-acetylaspartylglutamate (NAAG), and myo-inositol (MI), an osmolyte linked to Alzheimer disease in humans, were measured in three 2 × 2 × 2-cm3 left-sided brain regions (dorsolateral frontal, posterior cingulate, and posterior parietal). Glutamate, GABA, and MI levels were expressed as ratios to creatine plus phosphocreatine, and NAAG was expressed as a ratio to N-acetylaspartate. RESULTS After 20 weeks of GHRH administration, GABA levels were increased in all brain regions (P < .04), NAAG levels were increased (P = .03) in the dorsolateral frontal cortex, and MI levels were decreased in the posterior cingulate (P = .002). These effects were similar in adults with MCI and older adults with normal cognitive function. No changes in the brain levels of glutamate were observed. In the posterior cingulate, treatment-related changes in serum insulin-like growth factor 1 were positively correlated with changes in GABA (r = 0.47; P = .001) and tended to be negatively correlated with MI (r = -0.34; P = .06). Consistent with the results of the parent trial, a favorable treatment effect on cognition was observed in substudy participants (P = .03). No significant associations were observed between treatment-related changes in neurochemical and cognitive outcomes. Glucose homeostasis in the periphery was not reliably affected by GHRH administration and did not account for treatment neurochemical effects. CONCLUSIONS Twenty weeks of GHRH administration increased GABA levels in all 3 brain regions, increased NAAG levels in the frontal cortex, and decreased MI levels in the posterior cingulate. To our knowledge, this is the first evidence that 20 weeks of somatotropic supplementation modulates inhibitory neurotransmitter and brain metabolite levels in a clinical trial, and it provides preliminary support for one possible mechanism to explain favorable GHRH effects on cognition in adults with MCI and in healthy older adults. TRIAL REGISTRATION clinicaltrials.gov Identifier: NCT00257712.
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Affiliation(s)
- Seth D Friedman
- Department of Radiology, Seattle Children's Hospital, Seattle, Washington 98105, USA.
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Otto RK, Ferguson MR. Right ventricular apical sequestration: demonstration of a rare variant of double-chambered right ventricle with MRI. Pediatr Radiol 2013; 43:634-6. [PMID: 23052731 DOI: 10.1007/s00247-012-2525-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2012] [Revised: 08/12/2012] [Accepted: 08/13/2012] [Indexed: 11/29/2022]
Abstract
A 15-year-old boy sustained cardiac arrest and was ultimately found to have imaging characteristics consistent with a right ventricular apical sequestration, a sub-variety of double-chambered right ventricle. This is a unique report demonstrating the MRI findings of this rare variation.
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Affiliation(s)
- Randolph K Otto
- Department of Radiology, Seattle Children's Hospital, University of Washington, 4800 Sand Point Way NE, Seattle, WA 98105, USA.
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Soriano BD, Ferguson M, von Alvensleben J, Friedman S, Otto RK. Comparative assessment of pediatric right ventricular volumes and function by MRI: right horizontal long axis versus short axis. J Cardiovasc Magn Reson 2013. [PMCID: PMC3559558 DOI: 10.1186/1532-429x-15-s1-o102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Ferguson MR, Otto RK, Bender MA, Kolokythas O, Friedman SD. Liver and heart MR relaxometry in iron loading: reproducibility of three methods. J Magn Reson Imaging 2012; 38:987-90. [PMID: 23172590 DOI: 10.1002/jmri.23937] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Accepted: 10/04/2012] [Indexed: 11/06/2022] Open
Abstract
PURPOSE To compare the derived T2* values and reproducibility of three methods used to assess iron-loading in heart and liver. MATERIALS AND METHODS In 23 pediatric patients, liver and cardiac gradient-echo imaging datasets (within-exam repeated sequence pairs) were evaluated. Data analyses compared derived relaxation values (average of pairs) and coefficient of variation (reproducibility of pairs). RESULTS T2* values showed differences across methods, with pixel-wise mean > average fit > pixel-wise median. Coefficient of variation was found to be lower (better) with pixel-wise median and average fit methods compared to the pixel-wise mean technique. Maximum coefficient of variation values were lowest for the pixel-wise median approach in both the heart and liver. CONCLUSION Differences in derived T2* values between methods must be considered when comparing values to established magnetic resonance imaging (MRI)-biopsy formulas. The pixel-wise median and average fit methods demonstrate substantial benefits in reproducibility compared to the pixel-wise mean method. Since minimal variation in measurement is critical for patient care, median processing of relaxometry data may be preferable in both tissue types.
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Affiliation(s)
- Mark R Ferguson
- Seattle Children's Hospital, Department of Radiology, Seattle, Washington, USA
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Otto RK, Ferguson MR, Friedman SD. Cardiac MRI in Muscular Dystrophy: An Overview and Future Directions. Phys Med Rehabil Clin N Am 2012; 23:123-32, xi-xii. [DOI: 10.1016/j.pmr.2011.11.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Abstract
Charcot-Marie-Tooth disease (CMT) is one of the most common inherited neurological disorders, affecting 36 in 100,000 people. CMT type 1A (hereditary motor and sensory neuropathy) is the most frequent form of this disease, affecting 60 to 80% of the CMT population, but its diagnosis may be delayed because of inconsistent clinical signs and symptoms and a considerable variability in age at onset. Here, we report on four children (aged 10-17y) who presented with neuromuscular hip dysplasia and other orthopedic abnormalities but were only later diagnosed with CMT 1A. Hip dysplasia may be the initial clinical sign in CMT, so children with late-manifesting hip disease (i.e. age >8y) should be examined for signs of peripheral neuropathy, particularly when presenting with a 'waddling' or broad-based gait.
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Affiliation(s)
- Nigel S Bamford
- Department of Neurology, University of Washington, and Seattle Children's Hospital, Seattle, WA 98195, USA.
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Abstract
We describe 2 children with cerebrovascular events caused by emboli from left atrial myxomas and review 7 other pediatric cases from the literature. Transient cutaneous eruptions involving the extremities preceded the cerebrovascular events and were most likely attributable to fragmentation of the atrial tumor with peripheral embolization. Our first case demonstrates the more common presentation with acute hemiplegia caused by cerebral infarction and the second case a transient ischemic attack manifested by more subtle features as a result of involvement of the vertebrobasilar circulation. Neither child had a history or other signs of cardiac disease. Atrial myxoma should be considered in the differential diagnosis when children present with neurologic symptoms or with signs of embolization, because surgical removal of the tumor is critical and may be curative.
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Affiliation(s)
- Majeed Al-Mateen
- Pediatric Neurology Clinic, Mary Bridge Children's Hospital and Health Center, Tacoma, Washington 98415, USA.
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Abstract
Relatively little is known about the processes in which "successful" malingerers engage to avoid detection. This study summarizes the response strategies used by participants (N = 540) instructed to feign a specific mental disorder while completing various self-report instruments designed to detect faking. Postexperiment questionnaires indicated that those who were able to appear symptomatic while avoiding being detected as feigning (n = 60) were more likely to endorse a lower rate of legitimate symptoms, to avoid overly unusual or bizarre items, and to base their responses on their own personal experiences.
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Affiliation(s)
- J F Edens
- Department of Psychology, Sam Houston State University, Huntsville, TX 77341-2447, USA.
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McGaha A, Otto RK, McClaren MD, Petrila J. Juveniles adjudicated incompetent to proceed: a descriptive study of Florida's Competence Restoration program. J Am Acad Psychiatry Law 2001; 29:427-437. [PMID: 11785614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Although competence to stand trial is perhaps the most studied area of mental health law, most of the research has been focused on adults. This study describes a population of 471 juveniles committed for treatment/habilitation and restoration of their competence to proceed in the delinquency process. This population differed from their adult counterparts in important ways. For example, 58 percent of the juveniles had a diagnosis of mental retardation, and 57 percent of the juveniles with an Axis I diagnosis also had a diagnosis of conduct disorder. Only 17 percent had a diagnosed psychotic disorder. Diagnoses among cohorts of adults found incompetent differ markedly. However, similar to adult defendants who are adjudicated incompetent to proceed, the majority of these children were returned to court after treatment staff determined that they were competent to proceed. Contrary to expectation, there were no significant age-related differences with respect to the recommendation of clinical staff regarding restoration of competence. The data suggest the need for further research examining that subset of children in the juvenile justice system whose competence to proceed is questionable.
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Affiliation(s)
- A McGaha
- Department of Mental Health Law and Policy, Louis de la Parte Florida Mental Health Institute, University of South Florida, Tampa 33612, USA.
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Abstract
Psychologists and other mental health professionals practicing in essentially all clinical settings are called on to assess and manage clients who may pose a risk of violence to third parties. Over the past 25 years much has been learned about the relationship between violence and mental disorder, and about assessing violence risk. In this article risk factors for violence among persons with mental disorder are reviewed, clinical assessment strategies are discussed, and a model for thinking about treatment and other types of interventions designed to minimize violence risk is offered.
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Affiliation(s)
- R K Otto
- Department of Mental Health Law & Policy, Florida Mental Health Institute, University of South Florida, Tampa 33612, USA.
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Edens JF, Poythress NG, Nicholson RA, Otto RK. Effects of state organizational structure and forensic examiner training on pretrial competence assessments. J Behav Health Serv Res 1999; 26:140-50. [PMID: 10230143 DOI: 10.1007/bf02287487] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
States differ widely in their delivery of pretrial forensic evaluation services, in terms of organizational structure and training requirements of forensic examiners. It was hypothesized that defendants adjudicated incompetent to proceed in states using community-based, private-practitioner systems would show less impairment on a competence assessment measure, the MacArthur Competence Assessment Tool-Criminal Adjudication (MacCAT-CA), than defendants adjudicated incompetent in states using traditional, inpatient systems. It also was hypothesized that mean MacCAT-CA scores for incompetent defendants from states requiring forensic training/certification would be lower than for defendants from states lacking such requirements. Results indicated significant differences across the four types of service delivery systems examined. However, planned comparisons revealed no differences between a state using a traditional, inpatient model and a state employing a community-based, private-practitioner model. Analyses examining the effects of mandatory forensic training failed to support the hypothesis that training requirements result in the adoption of higher thresholds for determining incompetence.
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Affiliation(s)
- J F Edens
- Department of Psychology, Sam Houston State University, Huntsville, TX 77341-2447, USA.
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Abstract
Pretrial forensic evaluations are provided for the criminal courts throughout the United States. A variety of models of service delivery exists, and these models vary in ways that are important to the organization and finding of state mental health services. The first part of this paper describes several models of service delivery, which vary primarily in terms of centrality (central state institution vs. community service provider) and the use of inpatient vs. outpatient procedures. The second part compares these models on a number of important measures, including cost and efficiency. The final section of the paper indicates the importance of specialized forensic training and describes important components of such training.
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Affiliation(s)
- N G Poythress
- Florida Mental Health Institute, University of South Florida, Tampa 33612
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Edens JF, Otto RK, Dwyer T. Utility of the structured inventory of malingered symptomatology in identifying persons motivated to malinger psychopathology. J Am Acad Psychiatry Law 1999; 27:387-396. [PMID: 10509938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The Structured Inventory of Malingered Symptomatology (SIMS) is one of a number of recently developed instruments designed to identify persons exaggerating and/or fabricating psychiatric and cognitive symptomatology. Preliminary analog research indicated that the SIMS showed some promise as a screening device for identifying malingerers. This study examined the utility of the SIMS for identifying malingerers and, more importantly, its ability to distinguish truly symptomatic persons from persons fabricating symptomatology. In a sample of 197 participants who completed the SIMS and Symptom Checklist-90-Revised (SCL-90-R) under both honest and malingering instructional sets, sensitivity and specificity rates were generally high for the SIMS Total score and subscales. However, moderate correlations with the SCL-90-R were obtained in this sample, and specificity rates were lowest among a subset of participants reporting clinically significant levels of distress; both findings raise concerns regarding the potential for high false positive rates among clinical populations. Implications for clinical forensic practice are discussed and recommendations for future research are offered.
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Affiliation(s)
- J F Edens
- Department of Mental Health Law & Policy, University of South Florida, Tampa 33612, USA
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Abstract
This study examined the sensitivity and specificity of the Trauma Symptom Inventory (TSI; Briere, 1995), a self-report measure of psychological sequelae of potentially traumatic events, to malingering. An optimal cutting score for a validity scale--Atypical Responding (ATR)--designed to identify exaggeration or other unusual response sets was developed in an analogue sample of 155 college students and subsequently applied to TSI profiles from several samples of patients with various psychiatric disorders. Use of a cross-validated T-score cutoff of 61 and below on the ATR scale produced good sensitivity (81%) and specificity (92%) rates in the analogue sample. Participants in the analogue sample who reported a history of traumatic experiences were no more able to successfully malinger trauma symptoms than were participants without such histories. Furthermore, false-positive rates in the clinical samples were generally low, suggesting that relatively few genuinely symptomatic individuals would be misclassified as malingering.
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Affiliation(s)
- J F Edens
- Department of Mental Health Law and Policy, Louis de la Parte Florida Mental Health Institute, University of South Florida, USA
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Abstract
In 1989, an explosion aboard the USS Iowa killed 47 sailors. The Navy attributed the explosion to the intentional suicidal acts of Gunners Mate Clayton Hartwig, a conclusion supported primarily by an "equivocal death analysis" conducted by the Federal Bureau of Investigation (FBI). The U.S. House of Representatives Armed Services Committee (HASC) was highly critical of the FBI's report and the Navy's conclusions, in part because of the peer review provided by 12 psychologists organized by the American Psychological Association (APA). This article (a) reviews the nature of equivocal death analysis and related reconstructive psychological evaluations, (b) describes the nature of APA's consultation and involvement with the HASC, (c) discusses the conclusions reached by the HASC and the influence of the APA panelists, and (d) suggests limitations on the use of equivocal death analysis and related procedures in light of scientific concerns and ethical considerations.
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Otto RK, Poythress N, Starr L, Darkes J. An empirical study of the reports of APA's peer review panel in the congressional review of the U.S.S. IOWA incident. J Pers Assess 1993; 61:425-42. [PMID: 16370802 DOI: 10.1207/s15327752jpa6103_1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
The U.S. House of Representatives Armed Services Committee (HASC) review of the US. Navy's investigation of the U.S.S. IOWA incident provides a case study of the problems with reconstructive psychological evaluations. The US. Navy attributed the explosion on board the U.S.S. IOWA to the intentional suicidal acts of Gunner's Mate Clayton Hartwig, a conclusion supported primarily by an Equivocal Death Analysis (EDA) conducted by the FBI. Systematic analysis of the reports of the expert panelists who consulted to the NASC reveals that 11 of the 14 panelists were critical of the conclusions reached by the Navy/FBI. There was considerable variability among the judgments of the panelists, who reached consensus only for broad categories. Because the reliability and validity of postmortem psychological reconstructions such as EDA and psychological autopsy have not been established, clinicians are urged to exercise caution in the use of such procedures and to be sensitive to ethical obligations to consumers when using such techniques.
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Affiliation(s)
- R K Otto
- Department of Law & Mental Health, Florida Mental Health Institute, University of South Florida, Tampa, USA
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Abstract
This study examined the vulnerability of the Michigan Alcoholism Screening Test (MAST), a widely used, direct alcohol inventory, to positive dissimulation. An earlier study by developers of the MAST suggested that most alcoholics were unable to alter their scores and thereby avoid detection by the instrument. But closer examination indicated that a standard scoring procedure was not employed. This study examined the ability of alcoholics to avoid detection by the MAST when using a standard scoring procedure. As predicted, alcoholics readily manipulated their MAST scores and avoided detection when so motivated. These results are discussed, indications and contraindications for use are included, and recommendations regarding future research are made.
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Affiliation(s)
- R K Otto
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina
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