Background Sarcopenia, defined as decreased skeletal muscle mass, is prevalent and associated with poor prognosis in various solid tumors. This study aimed to determine the prognostic role of sarcopenia patients advanced gastric cancer (AGC). Methods retrospective consisted 140 consecutive who underwent palliative chemotherapy for AGC. A cross-sectional area at level third lumbar vertebra (L3) was measured using baseline computed tomography (CT) scans. Sarcopenia a L3 index ≤ 49 cm2/m2 men...

Background The prognostic significance of sarcopenia, an important component cancer cachexia, has been demonstrated in oncologic patients. Catabolic drivers have suggested to be key features cachexia. Objective To determine the relationship between systemic inflammatory markers and CT-determined muscle mass patients with SCLC. Methods Cross-sectional areas were evaluated at level third lumbar vertebra (L3) using baseline CT images 186 SCLC Sarcopenia was defined as a L3 index (L3MI, area...

Objective Suicide in adolescents is a major problem worldwide and previous history of suicide ideation attempt represents the strongest predictors future suicidal behavior. The aim this study was to develop prediction model identify Korean high risk (= who have ideation/attempt year) using machine learning techniques. Methods A nationally representative dataset Korea Youth Risk Behavior Web-based Survey (KYRBWS) used (n = 59,984 middle school students 2017). classification process performed...

Objective The objectives of the present study were to characterize natural course initially non-operated traumatic acute subdural hematoma (ASDH) and identify risk factors progression. Methods Retrospective analysis was performed using sequential computed tomography (CT) images maintained in a prospective observational database containing 177 ASDH cases treated from 2005 2011. Patients allocated four groups as followings; 136 (76.8%) patients spontaneous resolution group, 12 (6.8%) who...

Abstract Objectives We aim ed to evaluate a commercial artificial intelligence (AI) solution on multicenter cohort of chest radiographs and compare physicians' ability detect localize referable thoracic abnormalities with without AI assistance. Methods In this retrospective diagnostic study, we investigated 6,006 consecutive patients who underwent both radiography CT. evaluated commercially available intended facilitate the detection three (nodule/masses, consolidation, pneumothorax) against...

Sarcopenia is the loss of skeletal muscle function and mass a poor prognostic factor. This condition typically diagnosed by measuring at L3 level. Chest computed tomography (CT) scans do not include We aimed to determine if these can be used diagnose sarcopenia thus guide patient management treatment decisions. study compared ResNet-UNet, Recurrent Residual UNet, UNet3 + models for segmenting pectoralis area in chest CT images. A total 4932 images were collected from 1644 patients,...

This study identified the trends and clinical significance of anemia ferritin status 1 year postoperatively in patients with long-term survival analyzed clinicopathological factors preoperative nutritional/inflammatory conditions associated chronic disease (ACD) development. Between March 2009 December 2018, 2,976 who underwent curative gastrectomy for gastric cancer without recurrence or mortality within postoperative were included. The categorized into four groups; non-iron deficiency...

Background Advanced lung cancer inflammation index (ALI, body mass [BMI] x serum albumin/neutrophil-lymphocyte ratio [NLR]) has been shown to predict overall survival (OS) in small cell (SCLC). CT enables skeletal muscle be quantified, whereas BMI cannot accurately reflect composition. The purpose was evaluate prognostic value of modified ALI (mALI) using CT-determined L3 (L3MI, area at L3/height2) beyond original ALI. Methods L3MIs were calculated the images 186 consecutive patients with...

Purpose Lunit INSIGHT CXR (Lunit) is a commercially available deep-learning algorithm-based decision support system for chest radiography (CXR). This retrospective study aimed to evaluate the concordance rate of radiologists and thoracic abnormalities in multicenter health screening cohort. Methods materials We retrospectively evaluated radiology reports results at several centers August 2020. was adopted as clinical (CDSS) routine practice. Subsequently, completed their after reviewing...

This study aimed to investigate the diagnostic performance of chest computed tomography (CT) for opportunistic screening and longitudinal follow-up osteoporosis in breast cancer patients, compared dual-energy X-ray absorptiometry (DXA). The association between L1 vertebral attenuation on CT incidental fracture was also evaluated. We retrospectively reviewed 414 consecutive patients who underwent both non-enhanced DXA within a 3-month interval had at least two examinations over more than 1...

This study aimed to investigate the feasibility of using artificial intelligence (AI) identify normal chest radiography (CXR) from worklist radiologists in a health-screening environment.This retrospective simulation was conducted CXRs 5887 adults (mean age ± standard deviation, 55.4 11.8 years; male, 4329) three health screening centers South Korea commercial AI (Lunit INSIGHT CXR3, version 3.5.8.8). Three board-certified thoracic reviewed CXR images for referable abnormalities and grouped...

Although emphysema is a known independent risk factor of lung cancer, no study has addressed the prognostic impact computed tomography (CT)-emphysema score in advanced stage cancer.For 84 consecutive patients with IIIB and IV squamous cell cancer that underwent palliative chemotherapy, severity was semi-quantitatively scored using baseline chest CT images according to Goddard scoring system (possible scores range, 0-24). The cutoff high CT-emphysema determined maximum chi-squared test...

Among patients undergoing gastrectomy for gastric cancer, the impact of anthropometric indices on surgical outcomes is not well-established. The aim this study was to evaluate prognostic significance skeletal muscle index (SMI) and body mass (BMI) overall survival (OS) in with cancer.A total 305 who underwent curative adenocarcinoma between January 2005 March 2008 were enrolled. Patients classified into groups based SMI BMI. measured by preoperative abdominal computed tomography (CT)....

Objective The chest X-ray (CXR) is the most readily available and common imaging modality for assessment of pneumonia. However, detecting pneumonia from radiography a challenging task, even experienced radiologists. An artificial intelligence (AI) model might help to diagnose CXR more quickly accurately. We aim develop an AI images evaluate diagnostic performance with external dataset. Methods To train model, total 157,016 National Institutes Health (NIH) Korean Tuberculosis Association...

Purpose This study evaluated the performance of a commercially available deep-learning algorithm (DLA) (Insight CXR, Lunit, Seoul, South Korea) for referable thoracic abnormalities on chest X-ray (CXR) using consecutively collected multicenter health screening cohort. Methods and materials A consecutive cohort participants who underwent both CXR computed tomography (CT) within 1 month was retrospectively from three institutions’ care clinics (n = 5,887). Referable were defined as any...

Objective:We wanted to assess the trends of CT examinations that were conducted in an adult emergency department (ED). Materials and Methods:We searched medical database identify patients (≥ 18 years) who had visited ED number during period from January 2001 December 2010.We also analyzed types scans performed terms body parts, they as follows; head CTs, facial bone neckl chest abdominal miscellaneous CTs.Further, CTs subdivided angiography others.Results: A total 113656 examined for 409439...

Using a representative dataset from the Korea National Health and Nutrition Examination Survey (KNHANES) 2008 to 2011, we analyzed anthropometric dual-energy X-ray absorptiometry (DXA)-determined body composition findings for 493 cancer survivors (mean age a61.1 ± 12.6 years; 35.7% male). A much higher proportion of men (30.1%) than women (0.6%) met criteria sarcopenia. Subjects with history lung cancer, genitourinary or gastric were prone develop sarcopenia (31.6%, 26.3%, 21.4%,...

Neuromodulation using high-energy focused ultrasound (FUS) has recently been developed for various neurological disorders, including tremors, epilepsy, and neuropathic pain. We investigated the safety efficacy of low-energy FUS patients with chronic conducted a prospective single-arm trial 3-month follow-up new transcranial, navigation-guided, (tcNgFUS) technology to stimulate anterior cingulate cortex. Eleven underwent frequency 250 kHz spatial-peak temporal-average intensity 0.72 W/cm2. A...

This is the first national survey study in South Korea investigating relationship between suicide lethality and clinical information of attempters. An interview questionnaire was used to assess their sociodemographic factors, medical psychiatric information, two scales, Columbia-Suicide Severity Rating Scale Suicide Intent Scale. methods were categorized as low high lethality; covered drug overdose or self-cutting behavior, all other methods. High method groups significantly different...