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Bracero LA, Ghorayeb SR, Kouba I, Fukuda R, Lim CE, Blitz MJ. The effect of colorization on the fetal lung heterogeneity index. JOURNAL OF CLINICAL ULTRASOUND : JCU 2023; 51:812-815. [PMID: 36635062 DOI: 10.1002/jcu.23422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/24/2022] [Accepted: 12/27/2022] [Indexed: 06/02/2023]
Abstract
No previous studies have quantitatively assessed the effect of color tones on ultrasound texture analysis techniques. Our objective was to compare heterogeneity index (HI) between fetal lung images captured in grayscale and those same images after conversion to Ice and Sepia. Fetal lung images were obtained during medically indicated ultrasound examinations. We observed that HI is affected by the application of color tones to ultrasound images of the fetal lung. Therefore, for each type of biological tissue and color tone, determination of distinct HI nomograms and cut off points is recommended.
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Affiliation(s)
- Luis A Bracero
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Donald, Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York, USA
| | - Sleiman R Ghorayeb
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Donald, Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York, USA
- School of Engineering and Applied Sciences, Ultrasound Research Laboratory, Hofstra University, Hempstead, New York, USA
- Hofstra-Northwell School of Medicine, Radiology and Molecular Medicine, Hempstead, New York, USA
- Feinstein Institute for Medical Research, Center for Immunology and Inflammation, Manhasset, New York, USA
| | - Insaf Kouba
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Donald, Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York, USA
| | - Rena Fukuda
- School of Engineering and Applied Sciences, Ultrasound Research Laboratory, Hofstra University, Hempstead, New York, USA
| | - Chae Eun Lim
- School of Engineering and Applied Sciences, Ultrasound Research Laboratory, Hofstra University, Hempstead, New York, USA
| | - Mathew J Blitz
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Donald, Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York, USA
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Sethna CB, Kee D, Casado P, Murphy M, Palmer LS, Ghorayeb SR, Morganstern B. Renal sonographic changes in heterogeneity index and echogenicity in children with hypertension: a novel assessment. ACTA ACUST UNITED AC 2018; 12:e77-e83. [PMID: 30502313 DOI: 10.1016/j.jash.2018.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 10/18/2018] [Accepted: 11/09/2018] [Indexed: 11/17/2022]
Abstract
The kidneys are thought to contribute to the pathogenesis of primary hypertension, but hypertension is also known to cause target organ damage in the kidney. Noninvasive methods to capture possible changes in the kidney related to hypertension are limited. A new program that has been used to quantify the heterogeneity and percent echogenicity in renal ultrasound images was implemented to assess patients with hypertension. Children and adolescents <21 years with primary hypertension diagnosed by ambulatory blood pressure monitoring were compared with normotensive age- and sex-matched controls. Renal ultrasound images were evaluated by a technique that measured pixels of gray-scale images and transformed them into a binary map, which was converted to a heterogeneity index (HI) and percent echogenicity score. This study included 99 children with hypertension and 99 control subjects. Body mass index (BMI) was greater in the hypertension group. Average HI for hypertension was significantly higher than in controls (1.37 ± 0.19 vs. 1.2 ± 0.23, P = .001), while echogenicity scores were not different (26.6 ± 8.9 vs. 25.9 ± 10, P = .8). In regression analysis adjusting for BMI z-score and race, hypertension was associated with greater HI compared with controls (β = 0.11, 95% confidence interval 0.03-0.18, P = .005). In a model adjusted for age, sex, and BMI z-score in the hypertension group only, no ambulatory blood pressure monitoring measures were associated with HI or echogenicity scores (P > .05).HI was significantly greater in the hypertension group compared with normotensive controls. HI may be a novel method to detect changes in the kidney related to hypertension.
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Affiliation(s)
- Christine B Sethna
- Division of Pediatric Nephrology, Cohen Children's Medical Center, New Hyde Park, NY, USA; Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA; Feinstein Institute for Medical Research, Manhasset, NY, USA.
| | - Dustin Kee
- Division of Pediatric Nephrology, Cohen Children's Medical Center, New Hyde Park, NY, USA
| | - Pablo Casado
- Ultrasound Research Lab, DeMatteis School of Engineering and Applied Sciences, Hofstra University, Hempstead, NY, USA
| | - Megan Murphy
- Ultrasound Research Lab, DeMatteis School of Engineering and Applied Sciences, Hofstra University, Hempstead, NY, USA
| | - Lane S Palmer
- Division of Pediatric Urology, Cohen Children's Medical Center, New Hyde Park, NY, USA; Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
| | - Sleiman R Ghorayeb
- Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA; Feinstein Institute for Medical Research, Manhasset, NY, USA; Ultrasound Research Lab, DeMatteis School of Engineering and Applied Sciences, Hofstra University, Hempstead, NY, USA
| | - Bradley Morganstern
- Division of Pediatric Urology, Cohen Children's Medical Center, New Hyde Park, NY, USA
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