Original Article Deep learning image reconstruction in pediatric abdominal and chest computed tomography: a comparison of image quality and radiation dose Kun Zhang, Xiang Shi, Shuang-Shuang Xie, Ji-Hang Sun, Zhuo-Heng Liu, Shuai Zhang, Jia-Yang Song, Wen Shen

Background: A small but significant number of children and adolescents with cancer experience severe physical and psychological distress. Previous studies have shown that drawing therapy positively affects relieving psychological problems. However, the effect of drawing therapy on pediatric oncology patients has not been established by systematic review. Objective: The aim of this study was to determine the effect of drawing therapy on the pediatric oncology population. Methods: PubMed, EMBASE, MEDLINE, Cochrane, PsycINFO, CINAHL, and Chinese databases including CNKI, Wanfang, VIP, and CBM were searched. Studies published in the English and Chinese languages up to December 2019 were screened, and randomized controlled trials and nonrandomized experimental studies of drawing therapy interventions for pediatric oncology patients were reviewed. Screening was undertaken independently by 2 reviewers. The review protocol was registered with PROSPERO (registration number: CRD42020178365). Results: Eight studies were included. Three studies were randomized controlled trials, and 5 studies were nonrandomized experimental studies. Seven studies showed that drawing therapy had positive effects on reducing depression and anxiety and improving quality of life. However, 1 study showed a contradictory result, that is, participants had an increased anxiety level after intervention. Conclusions: Drawing therapy is effective in improving negative emotions, relieving somatic symptoms, and increasing social communication for pediatric oncology patients. Implications for Practice: Drawing therapy may be considered an adjuvant psychological intervention strategy for pediatric oncology patients. Meanwhile, more rigorous studies are needed to address the deficiencies of small number size and methodological weakness.

Objective: This study was aimed to analyze 10 pediatric cases of pigmented villonodular synovitis (PVNS) of the knee to elucidate their clinical features, diagnosis, treatments, and prognosis for providing reference regarding its clinical management in children. Methods: A retrospective analysis was made pertaining to the clinical manifestations, magnetic resonance imaging (MRI) findings, pathology, immunohistochemical results, treatment methods, and follow-up outcomes of 10 pediatric PVNS patients of the knee treated from January 2022 to January 2024 at our hospital. They were compared and analyzed with existing literature. Results: (1) All 10 patients had joint swelling with restricted movement, mainly in older female children with male-to-female ratio of 3:7 and average age of 14.1 ± 3.6 years; (2) diagnostic positive rate of MRI was 80%; (3) significant features of PVNS were the appearance of villous and nodular hyperplasia on synovial surface and deposition of brownish-yellow granular hemosiderin. Immunohistochemical staining results were clusterin (synovial cells+), D2-40 (synovial cells+), CD163 (histiocytes+), KP-1 (histiocytes+), CD31 (vascular+), P63 (−), and Ki67 (+, 1%-10%); and (4) all patients underwent arthroscopic surgery with 20% recurrence rate. Conclusion: Pediatric knee PVNS is more prevalent in older female children. The PVNS diagnosis is carried out by MRI, pathology, and immunohistochemistry. Arthroscopic surgery is effective for treating this condition in children.

Background: Neonatal hyperbilirubinaemia (NHB) affects approximately 60% of term infants and is a recognised cause of bilirubin-induced neurologic dysfunction (BIND); however, its subclinical neurodevelopmental sequelae have not been well characterised at the level of specific developmental domains. Objectives: We aimed to use the Griffiths Developmental Scales–Chinese Edition (GDS-C) to characterise the domain-specific neurodevelopmental profile of term infants with NHB and to identify clinical risk factors for adverse outcomes. Methods: We conducted a single-centre, retrospective cohort study of 123 term newborns delivered between September 2019 and August 2023 at a tertiary hospital in Shanghai, China; 77 had NHB and 46 were healthy controls. Neurodevelopmental outcomes were assessed using the GDS-C at a median age of 46.9 months (interquartile range [IQR], 36.4–59.7) by a single certified examiner who was blinded to bilirubin status. A developmental quotient (DQ) below 85 (>1 SD below the standardised mean of 100) or at or below the 10th percentile was classified as below cutoff; otherwise, performance was classified as within the normal range. To account for testing across six domains, a Bonferroni-adjusted significance threshold of p < 0.0083 was applied. Results: Compared to the control group, the jaundice group had higher proportions of below-cutoff performance in the Locomotor (26.0% vs. 10.9%; p = 0.045), Personal–Social (28.6% vs. 10.9%; p = 0.022), Eye and Hand Coordination (29.9% vs. 10.9%; p = 0.015) and Performance (35.1% vs. 15.2%; p = 0.018) domains. Among infants with severe hyperbilirubinaemia (total serum bilirubin (TSB) ≥ 342 μmol/L; n = 19), the proportions of below-cutoff performance in the Locomotor (47.4% vs. 19.0%; p = 0.032), Personal–Social (57.9% vs. 19.0%; p = 0.003) and Performance (57.9% vs. 27.6%; p = 0.034) domains exceeded those in the non-severe subgroup. Jaundice lasting ≥ 14 days was associated with poorer personal–social outcomes (p = 0.007). In multivariable logistic regression, both a peak TSB ≥ 342 μmol/L (adjusted odds ratio [aOR], 5.59; 95% confidence interval [CI], 1.64–19.02; p = 0.006) and a jaundice duration ≥ 14 days (aOR, 5.68; 95% CI, 1.61–20.04; p = 0.007) were independently associated with below-cutoff personal–social performance. Conclusions: Among term infants, NHB was associated with an increased risk of below-cutoff performance across several GDS-C domains, particularly those reflecting gross motor, personal–social and visual-spatial functions. Severe hyperbilirubinaemia and prolonged jaundice were independent risk factors. The GDS-C may serve as a sensitive, domain-specific instrument for the early identification of infants at risk of adverse neurodevelopmental outcomes.