Comparison of dynamic susceptibility contrast enhanced MR and FDG-PET brain studies in patients with Alzheimer's disease and amnestic mild cognitive impairment.

BACKGROUND: The aim of this study was to compare Dynamic Susceptibility Contrast Enhanced MRI (DSC-MRI) and PET with [18F]flurodeoxyglucose (FDG-PET) in the diagnosis of Alzheimer's Disease (AD) and amnestic Mild Cognitive Impairment (aMCI). METHODS: Twenty-seven age-and sex-matched patients with AD, 39 with aMCI and 16 controls underwent brain DSC-MRI followed by FDG-PET. Values of relative Cerebral Blood Volume (rCBV) and rCBV z-scores from frontal, temporal, parietal and PCG cortices were correlated with the rate of glucose metabolism from PET. Sensitivity, specificity and accuracy of DSC-MRI and FDG-PET in the diagnosis of AD and aMCI were assessed and compared. RESULTS: In AD, hypoperfusion was found within all the examined locations, while in aMCI in both parietal and temporal cortices and left PCG. FDG-PET showed the greatest hypometabolism in parietal, temporal and left PCG regions in both AD and aMCI. FDG-PET was more accurate in distinguishing aMCI from the controls than DSC-MRI. In the AD and combined group (AD + aMCI) there were numerous correlations between DSC-MRI and FDG-PET results. CONCLUSIONS: In AD the patterns of hypoperfusion and glucose hypometabolism are similar, thus DSC-MRI may be a competitive method to FDG-PET. FDG-PET is a more accurate method in the diagnosis of aMCI.

Use of technology by people with dementia and informal carers during COVID-19: A cross-country comparison.

OBJECTIVES: Considering the adverse outcomes of COVID-19, it is essential to provide adequate support and care for people with dementia and informal carers. Technology can reduce the distress associated with social distancing rules and the decreased access to in-person services. This study aimed to explore the use of technology and its perceived effects across different settings and countries. METHODS: The sample was composed of 127 informal carers and 15 people with dementia from the UK, Italy, Australia and Poland. Semi-structured interviews explored participants' experiences of using technology and their perceived effects. Transcripts were analysed by researchers in each country using an inductive approach. RESULTS: Three overarching themes were developed: (1) Technology kept us alive during COVID-19; (2) Remote care was anything but easy; (3) Perceived technology limitations. Many similarities emerged between countries supporting the role of technology for being socially engaged, having a routine, and staying active. However, the benefits of technology for health and psychosocial care were more limited. Across countries, barriers to the access and use of technology included lack of digital literacy, dementia severity, and lack of appropriate digital environments. Help and supervision from carers were also necessary and sometimes perceived as an additional burden. CONCLUSIONS: Technology can effectively reduce the shrinking world that may be amplified by the pandemic, thus preserving people with dementia's social skills and maintaining family connections. However, for more extensive and well-adapted use of technology in dementia care, actions should be taken to overcome the barriers to the access and use of technology by older and vulnerable people globally.

A qualitative 5-country comparison of the perceived impacts of COVID-19 on people living with dementia and unpaid carers.

BACKGROUND: Emerging evidence shows an impact of the COVID-19 pandemic on people living with dementia and informal carers, without any evidence-based global comparison to date. The aim of this international study was to explore and compare the perceived impact of COVID-19 and associated public health restrictions on the lives of people living with dementia and informal carers and access to dementia care across five countries. METHODS: Informal carers and people living with dementia who were residing in the community in the UK, Australia, Italy, India, and Poland were interviewed remotely between April and December 2020. Participants were asked about their experiences of the pandemic and how restrictions have impacted on their lives and care. Transcripts were analysed by researchers in each country using inductive thematic analysis. RESULTS: Fifteen people living with dementia and 111 informal carers participated across the five countries. Four themes emerged: (1) Limited access and support; (2) Technology and issues accessing remote support; (3) Emotional impact; and (4) Decline of cognitive and physical health reported by carers. Whilst variations were noted, the pandemic has indirectly affected people with dementia and carers across all five countries. The pandemic removed access to social support services and thus increased carer burden. Remote services were not always provided and were very limited in benefit and usability for those with dementia. As a result, carers appeared to notice reduced cognitive and physical health in people with dementia. Particular differences were noted between India and Poland vs. the UK, Italy, and Australia, with less impact on care provision in the former due to limited uptake of support services pre-pandemic based on cultural settings. CONCLUSIONS: The pandemic has amplified dementia as a global public health problem, and people affected by the condition need support to better access vital support services to live well.

The improvement of cognitive deficits after whole-body cryotherapy - A randomised controlled trial.

BACKGROUND: Whole-body cryotherapy (WBC) - a repetitive, short-term exposure to extremely low temperatures - may become an effective early intervention for mild cognitive impairment (MCI). It is a heterogeneous group of symptoms associated with cognitive dysfunction which is estimated to transform into dementia in 50% cases. STUDY DESIGN: The prospective randomised double-blind sham-controlled study aimed to determine the efficacy of WBC on cognitive functioning and biological mechanisms. The study was registered with Australian New Zealand Clinical Trials Registry (ACTRN12619001627145). METHODS: Participants with MCI (n = 62; (2026) were randomly allocated to cryogenic temperatures (-110 °C till -160 °C) (EG, n = 33) or placebo-controlled group (CG, n = 29). Cognitive functions were measured at baseline (T1), after the 10th WBC session (T2) and after 2 week-break (T3) with DemTect, SLUMS and Test Your Memory (TYM). Secondary outcome measures included quality of life (WHOQoL-BREF), self-reported well-being (VAS) and depressive symptoms (GDS). Whole blood samples (10 ml) were collected at T1 and T2 to evaluate levels of cytokines, neurotrophins, NO and biochemical parameters CRP total cholesterol, prolactin). RESULTS: There were significant differences between groups measured at T2 in immediate recall (DemTect) and in orientation (TYM) in favour of WBC group. Improvement in mood was detected in self-reported depressive symptoms level (WHOQoL-26; T2 p = 0.04; VAS mood T2 p = 0.02; T3 p = 0.07). The significant reduction of BDNF level was observed (p < 0.05). CONCLUSIONS: WBC may increase the performance of cognitive functions. It seems promising to combine WBC with existing behavioural and cognitive trainings in the future studies investigating early interventions methods in MCI.

The Experiences of People with Dementia and Informal Carers Related to the Closure of Social and Medical Services in Poland during the COVID-19 Pandemic-A Qualitative Study.

Older people with dementia are particularly at risk of COVID-19; however, relatively little is known about the indirect impact of the pandemic on the lives of those living with, and/or caring for someone with, dementia. The aim of this study was to investigate the experiences of people with dementia and informal carers during the closure of available social and medical services in Poland during the COVID-19 pandemic. A qualitative thematic analysis of semi-structured interviews with people with dementia (n = 5) and informal carers (n = 21) was performed between June and August 2020 after the first wave of COVID-19 in Poland. Three overarching themes were identified: (1) care re-organization; (2) psychological responses; (3) emerging needs. The factor underlying all these elements was reliance on other people. Social support and engagement are vital to the ongoing health and well-being of people living with dementia and their informal carers. Services need to be strengthened to provide ongoing provision to those living with dementia to reach pre-pandemic levels, if not better. Within the post-pandemic environment, people with dementia and their informal carers need reassurance that they can rely on external institutional and social support able to meet their needs.

Assessment of degradation of the selected projectile, commissural and association brain fibers in patients with Alzheimer's disease on diffusion tensor MR imaging.

BACKGROUND: Pathological examinations and the increasingly popular diffusion tensor imaging (DTI) show that in Alzheimer's disease (AD), the pathology involves not only the cortical and hippocampal structures, but also the white matter of the brain. DTI is a well recognized technique for evaluation of the integrity of white matter fibers. The aim of this study was to assess with the use of DTI some selected brain tracts in patients with AD, as well as to analyze the severity and distribution of the identified changes. MATERIAL/METHODS: Thirty-five patients with AD (mean age of 71.6 years, MMSE 17.6), and a control group of 15 healthy volunteers (mean age of 69.1 years, MMSE 29.8) were enrolled in the study. All patients were subjected to a thorough psychiatric examination and psychological tests. DTI examinations (TE 8500, TR 100) were performed using a 1.5T MR scanner. Fractional anisotropy (FA) measurements in the selected areas of interest (ROI) of the white matter fibers were performed under the control of color FA maps. The following fibers were evaluated - the middle cerebellar peduncles (MCP), the inferior longitudinal fasciculi (ILF), inferior frontooccipital fasciculi (IFO), genu (GCC) and splenium of the corpus callosum (SCC), posterior limbs of internal capsules (PLIC), superior longitudinal fasciculi (SLF) and posterior cingula (CG). RESULTS: There was a statistically significant decrease in FA in patients with AD, comparing to the control group. It was particularly strongly expressed in both CG (P<0.0001), followed by both ILF, right IFO, and left SLF. Less pronounced changes were found in GCC, SCC, and left IFO. In both PLICs and MCPs and in the right SLF, there was no significant change of FA. CONCLUSIONS: In Alzheimer's disease, there is a significant decrease in FA, which suggests degradation of the majority of the assessed white matter tracts. Distribution of these changes is not uniform. They involve the selected association fibers mainly and, to a lesser extent, the commissural fibers, while they are not found in the pyramidal tracts or medial cerebellar peduncles. Definitely, the most pronounced changes were found in the posterior cingula, the assessment of which (in the process of AD diagnostics) seems to be particularly promising.

SARS-CoV-2 pandemic and the population with dementia. Recommendations under the auspices of the Polish Psychiatric Association. / Pandemia SARS-CoV-2 a populacja osób z otepieniem. Rekomendacje pod patronatem Polskiego Towarzystwa Psychiatrycznego.

SARS-CoV-2 poses a particular risk to the elderly and people with many comorbidities. In the case of people with dementia, the compliance with sanitary recommendations and the necessary physical isolation can have far-reaching negative consequences in terms of limiting the continuation of tailored care, support and treatment. The recommendations related to the SARS-CoV-2 pandemic must take into account not only the medical consequences of lack of access to medical care, but also their long-term effects and the disease progression in accordance with the concept of social health. A plan of action for the psychoeducation of informal carers, adapted to the elderly group (including people with dementia), is also necessary. Prepared under the auspices of the Polish Psychiatric Association, the recommendations for people living alone, with their family and in long-term care facilities are intended to draw attention to key epidemiological issues that can be planned by medical staff within the organization of patient care. However, mental and social needs of patients, whose fulfilment is particularly significant in times of restrictions related to everyday activities, are of equal importance. Further monitoring of the epidemiological situation and scientific reports related to the SARS-CoV-2 pandemic are necessary to verify and update the guidelines.

Needs of Older People Attending Day Care Centres in Poland.

INTRODUCTION: Day care centres (DCC) aim to support older adults living in their own homes by providing a variety of activities to promote the independence of those people and reduce the caregiver's burden. In Poland, there are no standards for providing this form of care. The provided care is delivered by different organisations, and there is a lack of quality control in the majority of places. Regrettably, in Poland, there is a paucity of research on the holistic needs of the elderly attending DCC. AIM OF THIS STUDY: This is the first study which has aimed to identify the Polish day care centres attendees' needs to ensure that the increasing number of older people receive the best possible care, and as a part of the quality improvement process for recommendation development of the new day care services model in Poland within the 'Homely Marina' project. METHODS AND MATERIALS: A representative sample (n = 269) was randomly selected from day care centres attendees (estimated as 10,688) in Poland. An anonymous survey for the assessment of needs was developed by the authors. RESULTS: The respondents assessed the level of provided services as very good or good. Best rated services included meals, supportive and welfare services (occupational therapy, music therapy, art therapy, cognitive training). Almost half of the participants indicated the need for company as the main reason to attend a DCC. This research reveals a lack of support with regard to additional staff: e.g., a nurse. CONCLUSIONS: In Poland, the services offered in DCC should focus on social isolation and sense of loneliness prevention, and maintenance of social activity of the elderly. The presented analysis of needs in Polish day care centres suggests a need for changes which may improve the quality of services. There is a great need to find a balance between home-based care and in-patient care, using better integration of available services and strengthening support for informal caregivers. Robust research with a collection of meaningful outcomes is required to ensure that in Poland, the increasing number of older people is enabled to access high-quality day care service provision.

Efficacy of the Whole-Body Cryotherapy as Add-on Therapy to Pharmacological Treatment of Depression-A Randomized Controlled Trial.

INTRODUCTION: Accumulating evidence indicates the effectiveness of cryogenic temperature interventions in rheumatoid arthritis, ankylosing spondylitis, fibromyalgia, multiple sclerosis, and chronic low back pain. The application of whole-body cryotherapy (WBC) in psychiatric aspects of medicine was also noted. Nevertheless, the exact mechanisms explaining the beneficial effect of WBC on mood disorders remain unclear. The study aimed to assess the efficacy of repetitive short exposure to extremely low temperatures (WBC) on mood, quality of life as well as on biochemical measures among people diagnosed with depressive episode undergoing pharmacological treatment. MATERIALS AND METHODS: Prospective randomized, double-blind sham-controlled protocol was used. The study enrolled 92 medically stable adults (aged 20-73 years) with a diagnosis of a depressive episode. The participants were randomly allocated and exposed to 10 whole-body cryotherapy (WBC) sessions (-110°C till -160°C [the experimental group (EG)] or to low, but not cryogenic temperatures -50°C [the control group (CG)]. Thirty participants in the EG and 26 in CG completed the whole study. The primary outcome measures were depressive symptoms evaluated with the Beck Depression Inventory-II (BDI-II) as well as the Hamilton Depression Rating Scale (HAM-D 17). The quality of life, quality of sexual life, acceptance of the disease and self-reported mood, vitality, and sleep quality were assessed as secondary outcome measures. The study was registered at Australian New Zealand Clinical Trials Registry (ACTRN12619001600134). RESULTS: The results show evidence for a statistically significant difference in the clinical assessment of depressive symptoms according to HAM-D 17 scale (T4 by group interaction p=0.02), BDI-II (T2 time by group interaction p=0.01), cognitive-affective BDI dimension (T4 by group interaction p=0.00), and somatic BDI dimension (T4 by group interaction p=0.028). Significant improvement was also noticed in life quality (p < 0.05), self-assessed mood (p=0.035), and disease acceptance (p=0.007). There were no statistically significant changes related to sexual satisfaction, self-assessed vitality, and sleep (p > 0.05). CONCLUSIONS: Whole-body cryotherapy is a useful method to improve standard pharmacological treatment. The WBC intervention reduces mental health deterioration, especially in mood disorders, such as depression, and can be beneficial for well-being and quality of life.

[Infection or allergic reaction to carbamazepine? Diagnostic complications]. / Choroba zakazna czy reakcja alergiczna na karbamazepine? Trudnosci diagnostyczne.

The paper presents the case report of a patient diagnosed with borderline personality disorder, treated with carbamazepine. During the treatment symptoms of the infection of upper respiratory tract appeared, which evolved to allergic symptoms and then to morbilli-like and mumps-like symptoms. The patient was hospitalized due to this disorder for two weeks, in the beginning on an isolation ward and then was diagnosed and treated on a dermatological ward. The diagnosis of the disorder was doubtful due to polymorphic symptoms and their evolution. Detailed course of the disease, diagnostic process and laboratory results were presented in the case report. The authors also attempt to classify these symptoms and to analyse the relationship between the observed symptoms and drugs used during the treatment.

Late-life Depression and Alzheimer Disease: A Potential Synergy of the Underlying Mechanisms.

A number of biological and clinical characteristics typical of late life depression (LLD) have been suggested by recent research findings. The close association of LLD with cognitive impairment is now well documented and evidenced. However, it is still not clear whether it is depression that leads to cognitive decline, and in more severe cases, to dementia. The work presented in this review article suggests that depression and dementia frequently and strongly copresent, even if the causality remains largely opaque.

Does perfusion CT enable differentiating Alzheimer's disease from vascular dementia and mixed dementia? A preliminary report.

UNLABELLED: The purpose of the study was to evaluate the usefulness of perfusion CT (pCT) in differentiating Alzheimer's disease (AD) from vascular dementia (VaD) and mixed dementia (MixD). pCT was performed in 41 patients (mean age, 68.3 years): 24 with AD, 8 with VaD, and 9 with MixD. Regional perfusion parameters (rCBF, rCBV, and rMTT) were calculated from 31 ROIs in the grey and white matter of the frontal and temporal lobes, basal ganglia, and internal capsules bilaterally. The obtained data for the subgroups of AD, VaD, and MixD patients were compared statistically. CONCLUSIONS: On the basis of rCBF and rCBV values, pCT may be a valuable method of distinguishing between AD and VaD but it seems to be of little significance in differentiating MixD from VaD and of no usefulness in distinguishing between AD and MixD.

Type 3 Diabetes Mellitus: A Novel Implication of Alzheimers Disease.

The brain of patients with Alzheimer disease (AD) showed the evidence of reduced expression of insulin and neuronal insulin receptors, as compared with those of age-matched controls. This event gradually and certainly leads to a breakdown of the entire insulin-signaling pathway, which manifests insulin resistance. This in turn affects brain metabolism and cognitive functions, which are the bestdocumented abnormalities in AD. These observations led Dr. de la Monte and her colleagues to suggest that AD is actually a neuroendocrine disorder that resembles type 2 diabetes mellitus. The truth would be more complex with understanding the role of low-density lipoprotein receptor-related protein 1, Aß derived diffusible ligands, and advanced glycation end products. However, now it known as "brain diabetes" and is called type 3 diabetes mellitus (T3DM). This review provides an overview of "brain diabetes" focusing on the reason why the phenomenon is called T3DM.

Evaluation of the posterior cingulate region with FDG-PET and advanced MR techniques in patients with amnestic mild cognitive impairment: comparison of the methods.

BACKGROUND: The posterior cingulate region is an area of the earliest pathological changes in amnestic mild cognitive impairment (aMCI). The utility of FDG-PET imaging in dementia is already well established. OBJECTIVES: The aim of the study was to compare FDG-PET with advanced MR measurements: MR spectroscopy (MRS), perfusion weighted imaging (PWI), and diffusion tensor imaging (DTI) within the posterior cingulate region in patients with aMCI. METHODS: Fifty-five patients diagnosed with aMCI (66.5 y) and 20 age-matched controls (69 y) underwent MR examination including MRS, PWI, and DTI followed by FDG-PET scanning. Values of MRS metabolite ratios (NAA/Cr, Cho/Cr, mI/Cr), PWI cerebral blood volume (rCBV), and DTI fractional anisotropy (FA) were compared to the FDG-PET rates of glucose metabolism. RESULTS: Compared to controls, aMCI patients showed significant (p < 0.05) glucose hypometabolism, and lower rCBV and FA values. FDG-PET results correlated significantly with rCBV values. Compared to FDG-PET, PWI showed similar and DTI greater accuracy in distinguishing aMCI from controls. According to FDG-PET findings, two groups of aMCI patients were established: those with lower (PET-positive) and normal (PET-negative) glucose uptake. PET-positive aMCI subjects showed normal MRS findings, lower rCBV and FA values, while PET-negative patients revealed normal MRS and PWI results but significantly lower FA values. CONCLUSIONS: Advanced MR techniques such as PWI and particularly DTI may be regarded as competitive techniques to FDG-PET. DTI was the only method to show alterations in aMCI patients with normal FDG-PET, PWI, and MRS findings. DTI seems to be a very sensitive biomarker of early degeneration in aMCI.

["European Service Mapping Schedule" (ESMS)--instrument used to describe the structure of mental health care]. / Narzedzie opisujace strukture psychiatrycznej opieki zdrowotnej--"European Service Mapping Schedule" (ESMS).

There is many changes in psychiatric service last years. In deinstitutionalization process arising new diversified and wide integrated psychiatric services. Traditional names lose significance for example: open or stationary care. Moreover the same names, have different meaning in different centers or countries. Because of that processes in year 1997 EPCAT group with funding from European Commission Biomed grant developed ESMS instrument by Sonia Johnson and Robert Kuhlmann, to modern description and classification of psychiatric services. Instrument is based on standardizing classification accessible services, with different care models in Europe. In this work authors presented structure of questionnaire and typical applications in catchment areas. That compatible with European standards of psychiatric service instrument, portray gaps in old standards system and indicate developmental trends new psychiatric health service in medical care. Instrument ESMS indicates another possibilities in service study area for example analysis and comparison individual service components and helps in planning local development of psychiatric care services.

[Presentation of the cost-effectiveness technique questionnaire--the possibility of the Polish adaptation]. / Prezentacja narzedzi oceniajacych koszty leczenia i mozliwosc ich adaptacji w Polsce.

An increase of interest of cost-effectiveness begins from 1999 when act about general insurance was in force. The same situation was observed a few years ago in Europe. It was the reason why created and standardized questionnaire: European Service of Mapping Schedule--(ESMS)--for describing mental health system, European Socio--Demographic Schedule--(ESDS)--for presentation sociodemographic situation, The International Classification of Mental Health Care--(ICMHC)--questionnaire used to assess therapeutic process and Client Service Receipt Inventory--(CSRI)--for estimate cost-effectiveness. These questionnaires are used in clinical trial "European of Day Hospital Evaluation" conduct in Wroclaw.

[Course of the EDEN study by using participants' flow sheets]. / Przebieg badania EDEN wedlug schematu opisu badan z doborem losowym.

UNLABELLED: The development of science allows us to take up new investigative challenges. Interpretations of results can be difficult if there is no adequate and complete information about investigative methods applied, course of trial and statistical analyses. The CONSORT group proposed a standardized diagram facilitating an accurate presentation of the randomised trial. The EDEN study is an example of the application of this method, where the studied groups, number of participants, and all procedures can be presented. It is helpful to prepare reports and find necessary data. The first part of the diagram describes the course of recruitment, the second part presents data necessary to estimate the course of the study and data about numbers of patients in each timepoint whilst the third part shows the assessment of caregivers. CONCLUSIONS: The analysis of the course and correctness of the study is legible if the flow diagram is used. It is useful to find the necessary data for statistical analyses at every stage of study. Permanent control of the study allow to avoid bias upsetting the course of the study and influencing its quality. It introduces comprehensible and straight forward presentation of the results.

[Characteristics of psychiatric day hospitals in Poland--results of a questionnaire survey]. / Charakterystyka psychiatrycznych oddzialów dziennych w Polsce--wyniki badania ankietowego.

AIM: The survey was aimed at describing the characteristics and therapeutic means offered and the organizational structure of Polish day hospitals for adults as well the as characteristics of patients treated there. It was part of a wider international project carried out within a 5 EC Framework Program and focused on evaluation of costs and effectiveness of day hospital treatment when set against conventional stationary treatment in different European health care systems. METHOD: Data concerning the year 2000 were gathered using a self-designed questionnaire sent to respondents by post. The response ratio reached 65.2%. RESULTS: Based on the cluster analysis, three main types of day hospitals were recognized: 1. day hospitals focused on rehabilitation of chronic mental disturbances, improvement of social functioning and support, 2. day hospitals being alternative to stationary inpatient treatment, 3. day hospitals intended to continue out-patient treatment and psychotherapy. The number of treatment places, working hours and work-days in a week in polled institutions was constant. Most frequent reasons for not admitting a patient to a day hospital were: intensive suicidal tendencies and acute psychotic decompensation. The most numerous diagnostic groups of patients treated there were schizophrenia (32.2%) and affective disorder (17.4%). Only 18.6% of day hospitals employed a qualified psychotherapist, and 32.6% had a social worker. On the average, one treatment place was offered to 5 patients during a year. CONCLUSIONS: The profile of patients admitted to Polish day hospitals for adults is not arbitrarily defined with respect to diagnosis and severity of disorder. However, it is possible to distinguish day hospitals, which have their preferences: more to rehabilitate or more to treat patients. In the last 16 years there was a threefold increase of the number of patients treated in day hospitals due to affective disturbances.

Multimodal imaging in diagnosis of Alzheimer's disease and amnestic mild cognitive impairment: value of magnetic resonance spectroscopy, perfusion, and diffusion tensor imaging of the posterior cingulate region.

The purpose of this study was to assess metabolic, perfusion, and microstructural changes within the posterior cingulate area in patients with Alzheimer's disease (AD) and amnestic mild cognitive impairment (aMCI) using advanced MR techniques such as: spectroscopy (MRS), perfusion weighted imaging (PWI), and diffusion tensor imaging (DTI). Thirty patients with AD (mean age 71.5 y, MMSE 18), 23 with aMCI (mean age 66 y, MMSE 27.4), and 15 age-matched normal controls (mean age 69 y, MMSE 29.5) underwent conventional MRI followed by MRS, PWI, and DTI on 1.5 Tesla MR unit. Several metabolite ratios (N-acetylaspartate [NAA]/creatine [Cr], choline [Ch]/Cr, myoinositol [mI]/Cr, mI/NAA, mI/Cho) as well as parameters of cerebral blood volume relative to cerebellum and fractional anisotropy were obtained in the posterior cingulate region. The above parameters were correlated with the results of neuropsychological tests. AD patients showed significant abnormalities in all evaluated parameters while subjects with aMCI showed only perfusion and diffusion changes in the posterior cingulate area. Only PWI and DTI measurements revealed significant differences among the three evaluated subject groups. DTI, PWI, and MRS results showed significant correlations with neuropsychological tests. DTI changes correlated with both PWI and MRS abnormalities. Of neuroimaging methods, DTI revealed the highest accuracy in diagnosis of AD and aMCI (0.95, 0.79) followed by PWI (0.87, 0.67) and MRS (0.82, 0.47), respectively. In conclusion, AD is a complex pathology regarding both grey and white matter. DTI seems to be the most useful imaging modality to distinguish between AD, aMCI, and control group, followed by PWI and MRS.