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Hosokawa T, Deguchi K, Takei H, Sato Y, Tanami Y, Oguma E. Ultrasonography for the Detection of Osteomyelitis in Pediatric Patients With Soft Tissue Infection: A Pilot Study. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2024; 43:1223-1234. [PMID: 38456324 DOI: 10.1002/jum.16446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 02/22/2024] [Accepted: 02/25/2024] [Indexed: 03/09/2024]
Abstract
OBJECTIVES To demonstrate the usefulness of ultrasonography for differentiating soft tissue infections with or without osteomyelitis in pediatric patients who underwent ultrasonography and subsequent magnetic resonance imaging (MRI). METHODS Twenty-three patients were classified into 2 groups: 12 patients with and 11 patients without osteomyelitis based on MRI. Osteomyelitis using ultrasound is characterized by the presence of bone cortex irregularity and/or subperiosteal abscess formation. The diagnostic performance of ultrasonography for detecting osteomyelitis and subperiosteal abscess formation was compared with that of MRI. Diagnostic accuracy, sensitivity, specificity, positive predictive value, and negative predictive value were calculated with 95% confidence intervals (CIs). RESULTS Of 12 osteomyelitis cases, 11 had abnormal bone marrow enhancement (one residual case did not undergo contrast enhancement study) and 5 had subperiosteal abscesses. The diagnostic accuracy of ultrasonography for osteomyelitis was 82.6% (number of correct diagnosis of osteomyelitis/total number = 19/23; 95% CI, 61.2-95.0) and for detecting periosteal abscess was 95.7% (number of correct diagnosis of periosteal abscess/total number = 22/23; 95% CI, 78.1-99.9), respectively. The sensitivity and specificity of ultrasonography for detecting osteomyelitis were 66.7% (95% CI, 34.9-90.1) and 100% (95% CI, 71.5-100), respectively. The sensitivity and specificity of ultrasonography for detecting periosteal abscess were 80% (95% CI, 28.4-99.5), and 100% (95% CI, 81.5-100), respectively. One-third of osteomyelitis cases could not be detected using ultrasonography. CONCLUSIONS Ultrasonography may be useful for diagnosing osteomyelitis in pediatric patients; however, the technique appears limited by low sensitivity. However, it is more accurate for diagnosis of periosteal abscess in these patients.
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Affiliation(s)
- Takahiro Hosokawa
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
| | - Kuntaro Deguchi
- Department of Infectious Diseases and Immunology, Saitama Children's Medical Center, Saitama, Japan
| | - Haruka Takei
- Department of Infectious Diseases and Immunology, Saitama Children's Medical Center, Saitama, Japan
| | - Yumiko Sato
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
| | - Yutaka Tanami
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
| | - Eiji Oguma
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
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Hosokawa T, Tanami Y, Sato Y, Deguchi K, Takei H, Oguma E. Role of ultrasound in the treatment of pediatric infectious diseases: case series and narrative review. World J Pediatr 2023; 19:20-34. [PMID: 36129633 PMCID: PMC9490683 DOI: 10.1007/s12519-022-00606-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 08/05/2022] [Indexed: 01/13/2023]
Abstract
BACKGROUND Infectious diseases are common in pediatric patients. In these patients, ultrasound is a useful imaging modality that involves no irradiation or sedation and can be performed repeatedly at the patient's bedside. The purpose of this review was to show pediatric cases with infectious disease that used ultrasound to decide the methods of treatment. DATA SOURCES Literature review was performed using Pubmed as the medical database source. No year-of-publication restriction was placed. The mesh terms used were: "ultrasound", "sonography", "infectious disease", "treatment", "antibiotics", "surgical intervention", "pediatric", "children", "deep neck abscess", "pyothorax", "empyema", "pneumonia", "urinary tract infection", "intra-abdominal abscess", "soft tissue infection", "septic arthritis", "osteomyelitis", and "surgical site infection". RESULTS We presented pediatric case series with infectious diseases, including deep neck abscess, pyothorax and empyema, pneumonia, urinary tract infection, intra-abdominal abscess, soft tissue infection, septic arthritis and osteomyelitis, and surgical-site infection. Ultrasound was useful for evaluating the extent and location of inflammation and abscess and for decision-making concerning surgical intervention. CONCLUSION Knowledge of these sonographic findings is important for sonographers during examinations and for physicians when determining the treatment plan and period of antibiotic therapy for infected lesions.
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Affiliation(s)
- Takahiro Hosokawa
- Department of Radiology, Saitama Children's Medical Center, 1-2 Shintoshin Chuo-ku, Saitama, 330-8777, Japan.
| | - Yutaka Tanami
- Department of Radiology, Saitama Children’s Medical Center, 1-2 Shintoshin Chuo-ku, Saitama, 330-8777 Japan
| | - Yumiko Sato
- Department of Radiology, Saitama Children’s Medical Center, 1-2 Shintoshin Chuo-ku, Saitama, 330-8777 Japan
| | - Kuntaro Deguchi
- Department of Infectious Diseases and Immunology, Saitama Children’s Medical Center, Saitama, Japan
| | - Haruka Takei
- Department of Infectious Diseases and Immunology, Saitama Children’s Medical Center, Saitama, Japan
| | - Eiji Oguma
- Department of Radiology, Saitama Children’s Medical Center, 1-2 Shintoshin Chuo-ku, Saitama, 330-8777 Japan
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Hosokawa T, Honda M, Arakawa Y. Initial ultrasound evaluation of an anterior mediastinal mass ultimately diagnosed as T-cell acute lymphoblastic leukemia: a report of three cases in children. Radiol Case Rep 2022; 17:3639-3645. [PMID: 35936881 PMCID: PMC9352513 DOI: 10.1016/j.radcr.2022.07.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/06/2022] [Accepted: 07/08/2022] [Indexed: 11/19/2022] Open
Affiliation(s)
- Takahiro Hosokawa
- Department of Radiology, Saitama Children's Medical Center, 1-2 Shintoshin Chuo-ku Saitama, Saitama, 330-8777 Japan
- Corresponding author.
| | - Mamoru Honda
- Department of Gastroenterology and Hepatology, Saitama Children's Medical Center, 1-2 Shintoshin, Chuou-ku, Saitama, 330-8777, Japan
| | - Yuki Arakawa
- Department of Hematology/Oncology, Saitama Children's Medical Center, 1-2 Shintoshin, Chuou-ku, Saitama, 330-8777, Japan
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Hosokawa T, Tanami Y, Sato Y, Hara T, Iwama I, Ishimaru T, Kawashima H, Oguma E. Diagnostic Accuracy of Ultrasound for Detecting Gastric or Duodenal Ulcers in Pediatric Patients. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2022; 41:457-469. [PMID: 33876858 DOI: 10.1002/jum.15727] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 04/04/2021] [Accepted: 04/09/2021] [Indexed: 06/12/2023]
Abstract
OBJECTIVE Direct ultrasound imaging findings alone have low sensitivity for diagnosing duodenal (65%) and gastric ulcers (40%). This retrospective study evaluated the efficiency of ultrasound in detecting gastric/duodenal ulcers in pediatric patients through direct and indirect findings. METHODS We evaluated 244 children who underwent ultrasound and subsequent endoscopy within 4 weeks for direct and indirect imaging findings indicative of gastric/duodenal ulcers. Positive direct imaging findings revealed gastric or duodenal wall thickness >8 or 5 mm, respectively, and indirect findings revealed inflammatory changes, hyperechogenicity, and presence of lymph node around ulcers. Correspondingly, we calculated the sensitivity and specificity for diagnosing gastric/duodenal ulcers and used the Fisher's exact and Mann-Whitney U tests to compare the frequency of findings and gastroduodenal wall thicknesses in pediatric patients with gastric/duodenal ulcers. RESULTS Overall, 6 and 24 were diagnosed with gastric and duodenal ulcers, respectively. The sensitivities of direct and indirect findings were 60.0% (18/30) and 80.0% (24/30), respectively; the corresponding specificities were 98.1% (210/214) and 97.2% (208/214). The frequency of direct and indirect sonographic findings differed significantly between patients with gastric or duodenal ulcers (18/30 versus 24/30, P = .002). Gastric and duodenal wall thicknesses were greater in patients with gastric (6.6 ± 2.6 mm versus 3.6 ± 1.4 mm; P = .003) or duodenal ulcer (5.0 ± 1.4 mm versus 2.2 ± 1.0 mm; P <.0001), respectively, than in those without. CONCLUSIONS The frequency of indirect finding was greater than that of direct finding in pediatric patients with gastric/duodenal ulcers. Therefore, sonographers should carefully evaluate indirect findings around the stomach or duodenum.
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Affiliation(s)
- Takahiro Hosokawa
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
| | - Yutaka Tanami
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
| | - Yumiko Sato
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
| | - Tomoko Hara
- Department of Gastroenterology and Hepatology, Saitama Children's Medical Center, Saitama, Japan
| | - Itaru Iwama
- Department of Gastroenterology and Hepatology, Saitama Children's Medical Center, Saitama, Japan
| | - Tetsuya Ishimaru
- Department of Surgery, Saitama Children's Medical Center, Saitama, Japan
| | - Hiroshi Kawashima
- Department of Surgery, Saitama Children's Medical Center, Saitama, Japan
| | - Eiji Oguma
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
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Hosokawa T, Tanami Y, Sato Y, Oguma E. Comparison of the Balthazar score of acute pancreatitis between computed tomography and ultrasound in children: pitfalls of ultrasound in diagnosing and evaluating pancreatitis. J Med Ultrason (2001) 2021; 48:605-613. [PMID: 34309755 DOI: 10.1007/s10396-021-01117-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 06/21/2021] [Indexed: 12/20/2022]
Abstract
PURPOSE To demonstrate the utility of ultrasound for predicting the outcome of pancreatitis in pediatric patients using the Balthazar score. METHODS Twenty-four children diagnosed with pancreatitis, who underwent computed tomography (CT) followed by ultrasound within 24 h, were included. The Balthazar score was calculated using both modalities based on the appearance of the pancreas (score 0-4). The association between the Balthazar scores with CT and ultrasound was evaluated using single linear regression analysis. To evaluate the sonographic accuracy, the ultrasound severity index and findings were compared with those of CT. Presence or absence of abnormal pancreatic parenchymal change on ultrasound was compared to the presence or absence of pancreatic necrosis on CT. The CT and sonographic findings were evaluated in eight intra-abdominal segments. RESULTS The Balthazar scores yielded by CT (2.2 ± 1.1, range 0-4) and ultrasound (2.0 ± 1.1, range 0-4) showed a significantly strong correlation (r = 0.918, p < 0.001). The accuracy of ultrasound in determining the CT Balthazar scores was 91.7% (95% confidence interval 73.0-99.0%, 22/24 patients). In the two cases with pancreatic necrosis on CT, only one case was detected as abnormal pancreatic parenchymal change. Sonographic diagnostic accuracy in the pancreatic head was lower than that in the body and tail (accuracy of the pancreatic head, body, and tail enlargement/edema = 83.3%/75%, 100%/100%, and 100%/100%, respectively). CONCLUSIONS The total CT and ultrasound severity indices were significantly correlated. Ultrasound is a useful modality for evaluating not only the initial pancreatic condition but also the severity of pediatric pancreatitis.
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Affiliation(s)
- Takahiro Hosokawa
- Department of Radiology, Saitama Children's Medical Center, 1-2 Shintoshin, Chuo-ku, Saitama, Saitama, 330-8777, Japan.
| | - Yutaka Tanami
- Department of Radiology, Saitama Children's Medical Center, 1-2 Shintoshin, Chuo-ku, Saitama, Saitama, 330-8777, Japan
| | - Yumiko Sato
- Department of Radiology, Saitama Children's Medical Center, 1-2 Shintoshin, Chuo-ku, Saitama, Saitama, 330-8777, Japan
| | - Eiji Oguma
- Department of Radiology, Saitama Children's Medical Center, 1-2 Shintoshin, Chuo-ku, Saitama, Saitama, 330-8777, Japan
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Role of ultrasound in follow-up after choledochal cyst surgery. J Med Ultrason (2001) 2021; 48:21-29. [PMID: 33387117 DOI: 10.1007/s10396-020-01073-z] [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: 09/25/2020] [Accepted: 11/06/2020] [Indexed: 10/22/2022]
Abstract
Choledochal cyst, which is a congenital dilatation of the bile duct, is a common congenital disease requiring surgical repair. This disease usually occurs in children aged < 10 years, necessitating a relatively long follow-up after repair. The incidence of this congenital disease in Asian countries, including Japan, was reported to be higher than that in other countries. Thus, follow-up of pediatric patients after choledochal cyst surgery is especially important in Japan. Specific or non-specific choledochal cyst repair complications occur in various organs and are categorized as early or late complications. In the liver, biliary obstruction, such as an anastomotic stricture or intrahepatic bile duct stone, may occur. Biliary carcinoma is an important late complication. In the pancreas, pancreatitis, residual bile duct dilation, or pancreatic fistula/leakage may occur. In the intestines, Roux-en-Y reconstruction complications, such as an obstruction at the site of anastomosis or retrograde intussusception, may occur in the early and late phases. Some complications warrant urgent surgical intervention. In this review, we present the sonographic findings of choledochal cyst repair complications to guide clinicians in conducting a careful evaluation of the involved organs in the presence of these complications.
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Hosokawa T, Shibuki S, Tanami Y, Sato Y, Oguma E. Sonographic characteristics of pilomatricomas and their association with symptom duration. Medicine (Baltimore) 2020; 99:e22550. [PMID: 33019466 PMCID: PMC7535781 DOI: 10.1097/md.0000000000022550] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
This study aimed to investigate the associations between the sonographic findings and duration of symptoms in children with pilomatricoma.This study included 86 children with 95 lesions confirmed to be pilomatricoma after pathological examination. The associations between symptom duration and sonographic observations, including the presence or absence of peritumoral hyperechogenicity, calcification, and vascularity were investigated. The internal echogenicity of each pilomatricoma was scored using a 5-point scale based on echogenic spots and calcification with posterior acoustic shadowing. The Mann-Whitney U and Kruskal-Wallis tests were used for statistical analysis.We found that the absence of peritumoral hyperechogenicity and severity of calcification were associated with increased symptom duration. Calcification, (present, 19.19 ± 18.99 months vs absent, 4.31 ± 3.24 months; P < .01) and peritumoral hyperechogenicity (present, 5.02 ± 5.80 months vs absent, 16.17 ± 18.24 months; P < .01), and grade of internal echogenicity (grade 0/1/2/3/4 = 3 months [1 patient]/4.33 ± 3.26 months [range, 1-12]/4.57 ± 3.46 months [range, 2-12]/10.89 ± 9.17 months [range, 3-28]/35.27 ± 19.16 months [range, 9-60], respectively; P = .01 and <.01) were associated with significant differences in symptom duration. There were no significant between-group differences in vascularity (6.01 ± 7.24 months; range, 1-48 vs 15.50 ± 19.12 months; range, 1-60; P = .08).Pilomatricomas with a relatively short symptom duration were more likely to exhibit peritumoral hyperechogenicity and calcification with less severe posterior acoustic shadowing compared to lesions with a longer symptom duration. These sonographic findings provided useful information that facilitated the correct and rapid diagnosis of pilomatricoma.
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Hosokawa T, Shibuki S, Tanami Y, Sato Y, Ko Y, Nomura K, Oguma E. Extracardiac Complications in Intensive Care Units after Surgical Repair for Congenital Heart Disease: Imaging Review with a Focus on Ultrasound and Radiography. J Pediatr Intensive Care 2020; 10:85-105. [PMID: 33884209 DOI: 10.1055/s-0040-1715483] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 06/24/2020] [Indexed: 12/24/2022] Open
Abstract
Pediatric patients show various extracardiac complications after cardiovascular surgery, and radiography and ultrasound are routinely performed in the intensive care unit to detect and evaluate these complications. This review presents images of these complications, sonographic approach, and timing of occurrence that are categorized based on their extracardiac locations and include complications pertaining to the central nervous system, mediastinum, thorax and lung parenchyma, diaphragm, liver and biliary system, and kidney along with pleural effusion and iatrogenic complications. This pictorial review will make it easier for medical doctors in intensive care units to identify and manage various extracardiac complications in pediatric patients after cardiovascular surgery.
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Affiliation(s)
- Takahiro Hosokawa
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
| | - Saki Shibuki
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
| | - Yutaka Tanami
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
| | - Yumiko Sato
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
| | - Yoshihiro Ko
- Department of Cardiovascular Surgery, Saitama Children's Medical Center, Saitama, Japan
| | - Koji Nomura
- Department of Cardiovascular Surgery, Saitama Children's Medical Center, Saitama, Japan
| | - Eiji Oguma
- Department of Radiology, Saitama Children's Medical Center, Saitama, Japan
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