A Secure Three Factor Based Authentication Scheme for Telecare Medicine Information System with Privacy Preservation

Telecare Medicine Information System (TMIS) is now attracting field for remote healthcare, diagnosis and emergency health services etc. The major objective of this type of system is to provide medical facilities to patients who are critically ill and unable to attend hospitals or put in isolation for observations. A major challenge of such systems is to securely transmit patients' health related information to the medical server through an insecure channel. This collected sensitive data is further used by medical practitioners for diagnosis and treatment purposes. Therefore, security and privacy are essential for healthcare data. In this paper, a robust authentication protocol based on Chebyshev Chaotic map has been proposed for adequate security while transmitting data. The privacy preservation is maintained by a rule set which mainly controls the views. A detailed security analysis was performed for the proposed scheme.

A Chaotic-Map-Based Password-Authenticated Key Exchange Protocol for Telecare Medicine Information Systems

Telecare medicine information systems (TMISs) provide e-health services such that patients can access medical resources conveniently and doctors can prescribe treatments rapidly. Authentication is an essential security requirement in TMISs. In particular, the growth of password-based remote patient authenticated key exchange combining extended chaotic maps has enhanced the level of secure communications for TMISs. Recently, Lee suggested an improved random-number-based password-authenticated key exchange (PAKE) using extended chaotic maps and synchronized-clock-based PAKE using extended chaotic maps on Guo and Zhang and Xiao et al.’s PAKE. Unfortunately, we found that the nonce-based scheme of Lee is insecure against known session-specific temporary information and server spoofing attacks. To cope with the aforementioned defects, this study aims to provide a new secure PAKE based on extended chaotic maps with more security functionalities for TMISs. Additionally, we show that the proposed scheme for TMISs provides high security along with low communication cost, computational cost, and a variety of security features.

Tambar Ni Hulit: An ancient medical manuscript in North Sumatera

Tambar ni hulit, which means skin medicine in Simalungun language, is the title of an old manuscript belonging to the Simalungun tribe. This manuscript is written on laklak material containing medicine information for various diseases. Moreover, this manuscript is relatively rare and written in characters and language that are no longer commonly used. The purpose of this study is to inventory, describe, transliterate, and translate the interpretation of the Tambar Ni Hulit contents. Tambar Ni Hulit is one of the results in searching for old manuscripts in various places in North Sumatra, like museums, libraries, and private collections. The inventory, description, transliteration, and translation were carried out by applying the philological method and content analysis was done to review the content. The result of the inventory described the information of the storage location of Tambar Ni Hulit, namely the North Sumatra Museum. The description analysis described the physical state of the manuscript. From the transliteration and translation results, it is concluded that the Tambar Ni Hulit contains various disease information accompanied by the ingredients of their respective medicine and treatment methods with incantations during the treatment.

Development and psychometric validation for evaluating written medicine information in Thailand: The Consumer Information Rating Form

ObjectiveTo translate and validate the consumer information rating form (CIRF) for use in Thai populations.DesignThe development of the CIRF was carried out in two phases: translation process and cognitive interview, and psychometric testing.SettingA university hospital and a tertiary hospital in northeast Thailand.Participants150 outpatients from medicine department: 30 for phase 1 and 120 patients for phase 2 study.MethodsThe CIRF was translated with cultural adaptation into Thai using cognitive interview technique in a sample of outpatients. A larger sample of outpatients then completed the CIRF in relation to either a package insert (PI) or a patient information leaflet (PIL) for one of three medicines: atorvastatin, celecoxib and metformin. Construct validity was assessed using principal component analysis (PCA) and internal consistency using Cronbach’s α coefficient. Known group validity was assessed by comparing mean consumers’ ratings for PIs and PILs.ResultsThirty participants engaged in the cognitive interview and 120 participants completed the CIRF. The PCA found the 17 items of the CIRF were extracted into three factors: comprehensibility, utility and design quality scales, mirroring the original. Cronbach’s α for the overall scale (0.904) indicated good internal consistency. Known-group validity demonstrated significant differences in consumers’ rating between PIs and PILs for almost all items (p<0.001).ConclusionThai version of CIRF had acceptable validity and reliability for Thai consumers’ ratings of written medicine information. The CIRF could be of practical use in the process of developing medicine information to ensure consumers’ comprehension and their usefulness.

Retrospective Analysis of Acute Adverse Reactions of 4 Iodine Contrast Agents

Objective Incidence of acute adverse reactions (ADR) of 4 kinds of iodine contrast agents were retrospective analyzed in 10532 cases of CT enhanced scan and 6130 cases of arteriography in our hospital, and to investigate the safety of these 4 types agents in clinical application.Materials and Methods The occurrence of ADR to Iohexol, Ioversol, Iopromide and Iodixanol (expressed as I1, I2, I3 and I4) were recorded in detail from August,2007. 36 months' data were analyzed by Fisher's `Exact Test. The incidences of ADR were calculated, and medicine information and features of adverse reactions induced by these 4 types agents are analyzed. Results: CT enhanced scan and arteriography was performed in 16662 cases, including body enhanced scan, CTA ，CTU and arteriography. Acute adverse reactions occurred in 25 cases, and the incidence of ADR was 0.15%. Among them, 18 cases had mild ADR (0.10%), 7 cases had moderate ADR (0.04%) and 0 cases had severe acute adverse reaction. There was a difference in the incidence of acute adverse reaction between the 4 contrast agents used (X2=5.854, p=0.022). I4 had the highest incidence of ADR, it was 0.32%, and the lowest incidence of ADR occurred in I2, it`s 0.08%. The incidence of ADR with I1 and I3 was 0.14% and 0.18%, respectively. The incidence of ADR in intravenous administration was significantly higher than that in arterial administration（X2=4.655，p=0.036）. Conclusion In this study, the incidence of acute adverse reaction to Iodixanol was the highest, and Ioversol was the lowest. The incidence of ADR in arteriography was significantly lower than that in patients with intravenous administration enhanced CT.

Utilization of traditional medicine in the treatment of ailments among aged people in Ughelli community of Delta State

Traditional, complementary and alternative medicine (TCAM) refers to a set of healthcare practices (indigenous or imported) that are delivered outside of the mainstream (orthodox) healthcare system. The broad objective of this study was to investigate the use of traditional medicine in the treatment of ailments among aged people in Ughelli Community of Delta State, Nigeria. The study comprised of 241 subjects (121 males and 120 females) of about 40+ years who were resident in Ughelli community. First, a self-administered, open and close questionnaire was carefully structured, validated and issued to a cross section of selected subjects from within the study area. The instrument obtained the socio-demographic records of the subjects, alongside their knowledge on traditional medicine, attitudes towards, as well as practices towards traditional medicine. Information on the source, benefit, adverse effects and frequently used traditional medicines were also collected from participants, while leaving them with multiple responses in the open-ended questions. Following data collection, Results were subjected through the Statistical Package for Social Sciences (SPSS version 25), using the Chi-square test at a 95% confidence interval. One-way analysis of variance (ANOVA) was also used to compare the differences in means between groups, while setting a p value less than 0.05 as statistically significant. From our observation, an average of 98 subjects strongly agreed to their knowledge of the effectiveness of traditional medicines in the treatments of ailments. This number was of significant increase in comparison with about 76 subjects who were not sure in their response on the effectiveness of traditional medicines over orthodox in the study area. In addition, this negates the total number of sampled respondents (15%) who posited to disagree in support of the non-effectiveness of traditional medicines over its effectiveness. Also, a great percentage (36%) responses agreed that drinking is a far effecting and popular route of administering traditional medicines than others, while about 27% strongly agreed to this; even though a greater proportion of responses were not sure of the topical routes of applying traditional medicines.