15 research outputs found

    Young adult patients with a pediatric disease in history:Impact on course of life and transition into adulthood

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    PURPOSE: To assess the course of life of young adults who grew up with a chronic or life-threatening disease, and to compare their course of life with that of peers from the general population. Optimal transition from pediatric to adult health care requires knowledge of the psychosocial history of patients grown up with a pediatric disease. METHODS: A total of 508 young adults from the general Dutch population and 650 patients, aged 18-30 years, participated: 348 survivors of childhood cancer, 93 patients with anorectal malformations, 72 patients with Hirschsprung's disease, 61 patients with oesophageal atresia, 76 patients with end-stage renal disease. They completed the Course of Life Questionnaire, which retrospectively assesses the achievement of developmental milestones (autonomy, psychosexual and social development), and risk behavior (antisocial behavior, substance use and gambling). RESULTS: The young adults grown up with a chronic or life-threatening disease proved to have achieved significantly fewer milestones, or at older age than their peers, in all course-of-life domains. The course of life of young adults grown up with esophageal atresia was not delayed compared with that of their peers, whereas that of survivors of childhood cancer and patients with end-stage renal disease was delayed most. CONCLUSIONS: Health care providers should help to minimize the harm for children who grow up with a chronic or life-threatening disease by encouraging parents to stimulate social contacts and autonomy. Attention should especially be directed at children and adolescents growing up with childhood cancer or with end-stage renal diseas

    Breast MR imaging in women at increased lifetime risk of breast cancer: clinical system for computerized assessment of breast lesions initial results.

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    Item does not contain fulltextThe authors developed a clinical system for computerized delineation, rating, and classification of breast lesions depicted in contrast material-enhanced magnetic resonance images obtained in women with increased lifetime risk of breast cancer. Initial results showed negative predictive values above 98% at 50% positive predictive value with negligible interoperator differences. The system demonstrated potential to help exclude malignancy with high confidence and reproducibility with a positive predictive value that is acceptable in screening

    Reproducibility of mammary gland structure during repeat setups in a supine position.

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    PURPOSE: In breast conserving therapy, complete excision of the tumor with an acceptable cosmetic outcome depends on accurate localization in terms of both the position of the lesion and its extent. We hypothesize that preoperative contrast-enhanced magnetic resonance (MR) imaging of the patient in a supine position may be used for accurate tumor localization and marking of its extent immediately prior to surgery. Our aims in this study are to assess the reproducibility of mammary gland structure during repeat setups in a supine position, to evaluate the effect of a breast immobilization device, and to derive reproducibility margins that take internal tissue shifts into account occurring between repeat setups. MATERIALS & METHODS: The reproducibility of mammary gland structure during repeat setups in a supine position is estimated by quantification of tissue shifts in the breasts of healthy volunteers between repeat MR setups. For each volunteer fiducials are identified and registered with their counter locations in corresponding MR volumes. The difference in position denotes the shift of breast tissue. The dependence on breast volume and the part of the breast, as well as the effect of a breast immobilization cast are studied. RESULTS: The tissue shifts are small with a mean standard deviation on the order of 1.5 mm, being slightly larger in large breasts (V> 1000 cm3), and in the posterior part (toward the pectoral muscle) of both small and large breasts. The application of a breast immobilization cast reduces the tissue shifts in large breasts. A reproducibility margin on the order of 5 mm will take the internal tissue shifts into account that occur between repeat setups. CONCLUSION: The results demonstrate a high reproducibility of mammary gland structure during repeat setups in a supine position

    Diagnostic strategies in non-palpable breast lesions.

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    Item does not contain fulltextThe number of non-palpable breast lesions is growing. Needle-localised breast biopsy (NLBB) is the gold standard for evaluating these lesions. Cost-saving techniques and less invasive alternatives such as core-needle biopsy (LCNB) and fine-needle aspiration (FNA) have emerged. The aim of this study was to find out if the lesions of patients who were sent directly for surgery to undergo a NLBB differed from lesions of patients who were send for a non-operative procedure. Furthermore, if a benign result was obtained, we assessed the total and kind of subsequent diagnostic procedures that were undertaken. A retrospective study on 718 women with 749 non-palpable breast lesions was performed. In 58% of women with non-palpable breast lesion, a non-surgical procedure was chosen. Lesions sent directly for surgery were more frequently not visible on ultrasound (62%) and mainly consisted of microcalcifications only (56%). In 45%, this primary surgical approach could have been avoided. If the non-operative procedure showed a non-malignant result, 41% of these women received an additional surgical diagnostic procedure. These figures obtained from routine daily practice show the importance of protocols in order to standardise diagnostic procedures and prevent unnecessary surgery

    Computed radiography versus mobile direct radiography for bedside chest radiographs: impact of dose on image quality and reader agreement.

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    Item does not contain fulltextAIM: To asses the image quality and potential for dose reduction of mobile direct detector (DR) chest radiography as compared with computed radiography (CR) for intensive care unit (ICU) chest radiographs (CXR). METHODS AND MATERIALS: Three groups of age-, weight- and disease-matched ICU patients (n=114 patients; 50 CXR per acquisition technique) underwent clinically indicated bedside CXR obtained with either CR (single read-out powder plates) or mobile DR (GOS-TFT detectors) at identical or 50% reduced dose (DR(50%)). Delineation of anatomic structures and devices used for patient monitoring, overall image quality and disease were scored by four readers. In 12 patients pairs of follow-up CR and DR images were available, and in 15 patients pairs of CR and DR(50%) images were available. In these pairs the overall image quality was also compared side-by-side. RESULTS: Delineation of anatomy in the mediastinum was scored better with DR or DR(50%) than with CR. Devices used for patient monitoring were seen best with DR, with DR(50%) being superior to CR. In the side-by-side comparison, the overall image quality of DR and DR(50%) was rated better than CR in 96% (46/48) and 87% (52/60), respectively. Inter-observer agreement for the assessment of pathology was fair for CR and DR(50%) (kappa = 0.33 and kappa = 0.39, respectively) and moderate for DR (kappa = 0.48). CONCLUSION: Mobile DR units offer better image quality than CR for bedside chest radiography and allow for 50% dose reduction. Inter-observer agreement increases with image quality and is superior with DR, while DR(50%) and CR are comparable.1 september 201
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