Within six months of the discovery of X-ray in 1895, the technology was used to scan the interior of the human body, paving the way for many innovations in the field of medicine, including an ultrasound device in 1950, a CT scanner in 1972, and MRI in 1980. More recent decades have witnessed developments such as digital imaging using a picture archiving and communication system, computer-aided detection/diagnosis, organ-specific workstations, and molecular, functional, and quantitative imaging. One of the latest technical breakthrough in the field of radiology has been imaging genomics and robotic interventions for biopsy and theragnosis. This review provides an engineering perspective on these developments and several other megatrends in radiology.
Biological Markers/analysis ; Biomedical Engineering ; Diagnosis, Computer-Assisted/*trends ; Diagnostic Imaging/*trends ; Equipment Design ; Genomics ; Humans ; Image Processing, Computer-Assisted/*trends ; Radiology Information Systems/*trends ; Robotics ; Systems Integration ; User-Computer Interface

The monokaryotic strain, Schizophyllum commune strain IUM1114-SS01, was generated from a basidiospore of dikaryotic parental strain IUM1114. It even showed the decolorizing activities for several textile dyes much better than its parental strain. Based on the results of a single-molecule real-time sequencing technology, we present the draft genome of S. commune IUM1114-SS01, comprising 41.1 Mb with GC contents of the genome were 57.44%.Among 13,380 protein-coding genes, 534 genes are carbon hydrate-active enzyme coding genes.

OBJECTIVE: In Asians, kneeling and squatting are the postures that are most often induce common peroneal neuropathy. However, we could not identify a compatible compression site of the common peroneal nerve (CPN) during hyper-flexion of knees. To evaluate the course of the CPN at the popliteal area related with compressive neuropathy using magnetic resonance imaging (MRI) scans of healthy Koreans.METHODS: 1.5-Tesla knee MRI scans were obtained from enrolled patients and were retrospectively reviewed. The normal populations were divided into two groups according to the anatomical course of the CPN. Type I included subjects with the CPN situated superficial to the lateral gastocnemius muscle (LGCM). Type II included subjects with the CPN between the short head of biceps femoris muscle (SHBFM) and the LGCM. We calculated the thickness of the SHBFM and posterior elongation of this muscle, and the LGCM at the level of femoral condyles. In type II, the length of popliteal tunnel where the CPN passes was measured.RESULTS: The 93 normal subjects were included in this study. The CPN passed through the “popliteal tunnel” formed between the SHBFM and the LGCM in 36 subjects (38.7% type II). The thicknesses of SHBFM and posterior portions of this muscle were statistically significantly increased in type II subjects. The LGCM thickness was comparable in both groups. In 78.8% of the “popliteal tunnel”, a length of 21 mm to < 40 mm was measured.CONCLUSION: In Korean population, the course of the CPN through the “popliteal tunnel” was about 40%, which is higher than the Western results. This anatomical characteristic may be helpful for understanding the mechanism of the CPNe by posture.
Asian Continental Ancestry Group ; Head ; Humans ; Knee ; Magnetic Resonance Imaging ; Nerve Compression Syndromes ; Peroneal Nerve ; Peroneal Neuropathies ; Posture ; Retrospective Studies

An African swine fever (ASF) outbreak in wild boars was first reported on October 2, 2019, in South Korea. Since then, additional cases were reported in South Korea's border areas. We here report the identification of ASF virus (ASFV) DNAs from two out of eight environmental abiotic matter samples collected from areas where ASF-positive wild boar carcasses were found. Comparative genomic investigations suggested that the contaminating ASFV DNAs originated from the wild boar whose carcass had been found near the positive sample sites.This is the first report on the identification of ASF viral material in wild boar habitats.

An African swine fever (ASF) outbreak in wild boars was first reported on October 2, 2019, in South Korea. Since then, additional cases were reported in South Korea's border areas. We here report the identification of ASF virus (ASFV) DNAs from two out of eight environmental abiotic matter samples collected from areas where ASF-positive wild boar carcasses were found. Comparative genomic investigations suggested that the contaminating ASFV DNAs originated from the wild boar whose carcass had been found near the positive sample sites.This is the first report on the identification of ASF viral material in wild boar habitats.

背景专家委员会制定的卒中康复指南应用于退伍军人健康管理部门及国防部卫生保健系统。方法根据以前发表的指南,委员会利用美国预防服务特别工作组制定的标准,评价了截至到2002年发表的文献。指南根据临床随机化实验、非对照性研究等证据提出建议(如缺乏确定的数据则根据专家组的建议)。结果Ⅰ级水平的建议包括:在多学科康复环境中或卒中单元中传递卒中治疗,通过NI HSS对卒中患者进行评价,早期启动康复治疗,对吞咽困难患者进行吞咽功能筛查,积极进行二级预防,预防深静脉血栓等。推荐应用标准化的评价工具制定适合每个患者的全面的治疗计划。强烈建议进行抗抑郁及情感波动方面的治疗。语言治疗师应评价患者的交流及认知障碍,并在需要时提供治疗。患者、家属及护理者是康复小组的重要成员,应当介入康复的全部疗程。这些建议在以下网站可查询:httP://stroke.ahajournals.org/cgi/content/full/36/9/e100。并附有每项建议的全文证据表。结论这些建议应平等地应用于所有临床环境中的所有卒中康复患者,而不是仅针对联邦医疗系统的临床问题或资源。

Objective: : We aimed to analyze the effectiveness of external neurolysis on the common peroneal nerve (CPN) in patients with posture-induced compressive peroneal neuropathy (PICPNe). Further, we aimed to examine the utility of magnetic resonance imaging (MRI) in assessing the severity of denervation status and predicting the postoperative prognosis. Methods: : We included 13 patients (eight males and five females) with foot drop who underwent CPN decompression between 2018 and 2020. We designed a grading system for assessing the postoperative functional outcome. Additionally, we performed MRI to evaluate the denervation status of the affected musculature and its effect on postoperative recovery. Results: : The median time to surgery was 3 months. The median preoperative ankle dorsiflexion and eversion grades were both 3, while the average functional grade was 1. Posterior crural intermuscular septum was the most common cause of nerve compression, followed by deep tendinous fascia and anterior crural intermuscular septum. There was a significant postoperative improvement in the median postoperative ankle dorsiflexion and eversion grades and average postoperative functional (4, 5, and 2.38, respectively). Preoperative ankle eversion was significantly correlated with denervation status. Additionally, the devernation status on MRI was positively correlated with the outcome favorability. However, denervation atrophy led to a less favorable outcome. Conclusion : Among patients with intractable PICPNe despite conservative management, surgical intervention could clinically improve motor function and functional ability. Additionally, MRI examination of the affected muscle could help diagnose CPNe and assess the postoperative prognosis.

A primary right atrial (RA) mass is not common; instead, most tumors in the right atrium originate from metastasis through the caval route. Here we describe a patient with a huge RA tumor that showed contiguous spread from the inferior vena cava. This 60-year-old patient, positive for hepatitis B surface antigen, visited the emergency department of our institution due to recently aggravated dyspnea. Transthoracic and transesophageal echocardiography clearly demonstrated a huge RA mass, 6.5x6.0 cm, causing flow disturbance. Cardiac magnetic resonance imaging and dynamic computed tomography of the liver showed multiple large hepatic masses that extended into the right atrium, with tumor thrombi in the inferior vena cava. Given the enhancement pattern in dynamic computed tomography of the liver, the hepatic mass was diagnosed as hepatocellular carcinoma. Due to the risk of spontaneous rupture of the mass, emergency transarterial chemoembolization was performed, without complications. Thereafter, thalidomide, which has been shown to have anti-angiogenic effects, was prescribed to the patient.
Carcinoma, Hepatocellular ; Dyspnea ; Echocardiography ; Echocardiography, Transesophageal ; Emergencies ; Heart Atria ; Hepatitis B Surface Antigens ; Humans ; Liver ; Magnetic Resonance Imaging ; Middle Aged ; Neoplasm Metastasis ; Rupture, Spontaneous ; Thalidomide ; Vena Cava, Inferior

OBJECTIVE: To evaluate Korean physiatrists' practice of performing intramuscular botulinum toxin injection in anticoagulated patients and to assess their preference in controlling the bleeding risk before injection. METHODS: As part of an international collaboration survey study, a questionnaire survey was administered to 100 Korean physiatrists. Physiatrists were asked about their level of experience with botulinum toxin injection, the safe international normalized ratio range in anticoagulated patients undergoing injection, their tendency for injecting into deep muscles, and their experience of bleeding complications. RESULTS: International normalized ratio <2.0 was perceived as an ideal range for performing Botulinum toxin injection by 41% of the respondents. Thirty-six respondents replied that the international normalized ratio should be lowered to sub-therapeutic levels before injection, and 18% of the respondents reported that anticoagulants should be intentionally withheld and discontinued prior to injection. In addition, 20%-30% of the respondents answered that they were uncertain whether they should perform the injection regardless of the international normalized ratio values. About 69% of the respondents replied that they did have any standardized protocols for performing botulinum toxin injection in patients using anticoagulants. Only 1 physiatrist replied that he had encountered a case of compartment syndrome. CONCLUSION: In accordance with the lack of consensus in performing intramuscular botulinum toxin injection in anticoagulated patients, our survey shows a wide range of practices among many Korean physiatrists; they tend to avoid botulinum toxin injection in anticoagulated patients and are uncertain about how to approach these patients. The results of this study emphasize the need for formulating a proper international consensus on botulinum toxin injection management in anticoagulated patients.
Anticoagulants ; Botulinum Toxins* ; Compartment Syndromes ; Consensus ; Cooperative Behavior ; Surveys and Questionnaires ; Hemorrhage ; Humans ; Injections, Intramuscular* ; Intention ; International Normalized Ratio ; Muscles

BACKGOUND: The progression rate of IgA nephropathy is known to be variable. We tried to draw an equation that can predict the interval till end stage renal disease (ESRD). METHODS: We retrospectively checked the risk factors of the progression such as demographic, clinical, laboratory, and histologic data by using simple linear regression in eighty eight (M:F=53:35) patients with biopsy-proven IgA nephropathy from Oct 1994 to Aug 2004. By multiple linear regression, a semiquantitative equation estimating the rate of progression was developed. We also evaluated whether there is a "point of no return" that progresses to ESRD which was shown by D'Amico ('93) and Scholl ('99) by receiver operating characteristic (ROC) curve analysis. RESULTS: Mean age and follow-up period were 34.1+/-13.6 years and 55.7+/-31.4 months. Among the risk factors, spot urine protein to creatinine ratio and mean arterial pressure during the follow-up period were significantly associated with the rate of progression (p<0.05). A semiquantitative equation estimating the rate of progression using the two factors was developed as follow. (delta)CCr=2.206-(0.128 x PCR(follow-up))-(0.023 x MAP(follow-up)) (MAPfollow-up:mean arterial pressure; regression coefficient=-0.023, PCRfollow-up:spot urine protein/creatinine; regression coefficient=-0.128). By ROC curve analysis, all patients with maximum serum creatinine over 4.1 mg/ dL during follow-up were found to progress to ESRD. CONCLUSION: We conclude that in Korean IgA nephropathy patients we could predict the rate of decline in renal function for individual patients semiquantitatively and we could confirm the existence of a "point of no return" during the course of IgA nephropathy.
Arterial Pressure ; Creatinine ; Follow-Up Studies ; Glomerulonephritis, IGA* ; Humans ; Immunoglobulin A* ; Kidney Failure, Chronic ; Linear Models ; Retrospective Studies ; Risk Factors ; ROC Curve