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1.
Artículo en Inglés | MEDLINE | ID: mdl-38607512

RESUMEN

The well preserved skeleton of Joseph Huber, a very well-known historical character of the 19th century Munich, also nicknamed "Finessen-Sepperl", is the starting point of the reconstruction of life and death of this historical individual. He was known as a postilion d´amour (love's messenger) of the Royal Bavarian capital with numerous comments and anecdotes and a few biographical sketches that indicate he remained well until the last few years of his life where requests for his duties lessened. The skeleton shows a small-sized male individual with almost complete loss of teeth, but otherwise very well-mineralized bone, having suffered from three episodes of trauma - an old-healed incomplete femoral neck fracture leading to severe osteoarthrosis, a clavicle fracture of the medial third with a few weeks old callus formation, and fresh serial rib fractures along with severe skull trauma with fractures of the os temporale and petrosum, presumably leading to intracranial bleeding and finally death. The type and distribution of these latter two injuries are in agreement with a murderous attack - which was retrospectively reported several years after his death, while the old-healed femoral neck fracture may have caused reduction in Joseph´s walking activities but not reduced requests for his services. Paleopathology not only identifies the terminal decline, but also previous diseases of this Old Bavarian character and thereby completes his story.

2.
Clin Anat ; 2024 Apr 02.
Artículo en Inglés | MEDLINE | ID: mdl-38566474

RESUMEN

The ancient Egyptians considered the heart to be the most important organ. The belief that the heart remained in the body is widespread in the archeological and paleopathological literature. The purpose of this study was to perform an overview of the preserved intrathoracic structures and thoracic and abdominal cavity filling, and to determine the prevalence and computed tomography (CT) characteristics of the myocardium in the preserved hearts of ancient Egyptian mummies. Whole-body CT examinations of 45 ancient Egyptian mummies (23 mummies from the Ägyptisches Museum und Papyrussammlung, Berlin, Germany, and 22 mummies from the Museo Egizio, Turin, Italy) were systematically assessed for preserved intrathoracic soft tissues including various anatomical components of the heart (pericardium, interventricular septum, four chambers, myocardium, valves). Additionally, evidence of evisceration and cavity filling was documented. In cases with identifiable myocardium, quantitative (measurements of thickness and density) and qualitative (description of the structure) assessment of the myocardial tissue was carried out. Heart structure was identified in 28 mummies (62%). In 33 mummies, CT findings demonstrated evisceration, with subsequent cavity filling in all but one case. Preserved myocardium was identified in nine mummies (five male, four female) as a mostly homogeneous, shrunken structure. The posterior wall of the myocardium had a mean maximum thickness of 3.6 mm (range 1.4-6.6 mm) and a mean minimum thickness of 1.0 mm (range 0.5-1.7 mm). The mean Hounsfield units (HU) of the myocardium at the posterior wall was 61 (range, 185-305). There was a strong correlation between the HU of the posterior wall of the myocardium and the mean HU of the muscles at the dorsal humerus (R = 0.77; p = 0.02). In two cases, there were postmortem changes in the myocardium, most probably due to insect infestation. To our knowledge, this is the first study to investigate the myocardium systematically on CT scans of ancient Egyptian mummies. Strong correlations between the densities of the myocardium and skeletal muscle indicated similar postmortem changes of the respective musculature during the mummification process within individual mummies. The distinct postmortem shrinking of the myocardium and the collapse of the left ventriclular cavity in several cases did not allow for paleopathological diagnoses such as myocardial scarring.

3.
Int J Paleopathol ; 42: 46-54, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-37544242

RESUMEN

OBJECTIVE: To identify and interpret computed tomography (CT) findings of postmortem changes in ancient Egyptian child mummies. MATERIALS: Whole-body CT examinations of 21 ancient Egyptian child mummies from German (n = 18), Italian (n = 1), and Swiss museums (n = 2). METHODS: Conspicuous CT findings from prior evaluations with various research questions that were assessed as postmortem changes were classified, and special cases were illustrated and discussed. RESULTS: Postmortem changes were classified into several categories. From these, individuals with evidence of invasion of resin/oil/tar into bone, dried fluid-levels within bone most likely due to natron, probable interaction of natron with soft tissues and bone, as well as insect infestation were demonstrated. CONCLUSIONS: One challenge of paleoradiology is to differentiate between intravital and postmortem changes, which can be multifarious. These changes can be obvious, but also subtle, and can mimic diseases. SIGNIFICANCE: The provided classification of postmortem changes, as well as the demonstrated cases, may serve as models for further paleoradiological investigations. The dried intraosseous fluid levels in two mummies, most likely due to natron, suggests that these children were immersed in a liquid natron bath, in contrast to the current scientific view that natron for mummification was routinely applied in the solid form. LIMITATIONS: CT was used as the only examination method, as sampling of the mummies was not possible. SUGGESTIONS FOR FURTHER RESEARCH: The awareness that postmortem changes on CT images of ancient Egyptian mummies might mimic pathology should be raised to reduce or avoid incorrect interpretation.


Asunto(s)
Cambios Post Mortem , Tomografía Computarizada por Rayos X , Humanos , Niño , Egipto , Tomografía Computarizada por Rayos X/métodos
4.
Front Med (Lausanne) ; 9: 979670, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36388889

RESUMEN

We describe here the results of a multidisciplinary study on an infant mummy from 16th century Upper Austria buried in the crypt of the family of the Counts of Starhemberg. The macroscopic-anthropological, radiological (whole-body CT scan), histological (skin tissue), and radiocarbon isotope investigations suggested a male infant of 10-18 months' age, most likely dying between 1550 and 1635 CE (probably Reichard Wilhelm, 1625-1626 CE), that presented with evidence of metabolic bone disease with significant bilateral flaring of costochondral joints resembling "rachitic rosary" of the ribs, along with straight long bones and lack of fractures or subperiosteal bleeding residues. Although incompletely developed, the osteopathology points toward rickets, without upper or lower extremities long bone deformation. The differential diagnosis is vitamin C deficiency (scurvy) (also with an incomplete presentation, although overlap between both disorders may be present). As additional pathology, there was significantly enlarged subcutaneous fat tissue (thickness more than 1 cm at the navel and thighs and longitudinal creases of the skin) along with a histologically enlarged subcutaneous fat layer consistent with infantile adipositas as a coincident disorder. Finally, remnants of lung tissue with pleural adhesion of the right lung indicate possibly lethal pneumonia, a disease with an increased prevalence in vitamin D deficient infants. Ultimately, the skull presented with extensive destruction of the bones of the base and dislocation of the bones of the skull squama. These changes, however, are most likely post-mortal pseudopathology, the result of a burial in a flat, narrow coffin because there were no bone fractures or residues of bleeding/tissue reaction that would have occurred whilst the patient was alive.

5.
Int J Paleopathol ; 36: 30-35, 2022 03.
Artículo en Inglés | MEDLINE | ID: mdl-34974252

RESUMEN

OBJECTIVE: To identify computed tomography (CT) findings of purulent infections in ancient Egyptian child mummies. MATERIALS: Whole-body CT examination of 21 ancient Egyptian child mummies from German (n = 18), Italian (n = 1), and Swiss museums (n = 2). METHODS: CT examinations were evaluated for estimation of age at death and sex of the children. CT examinations were systematically assessed for any CT findings of purulent infection. RESULTS: The estimated age at death of the children ranged from about one year to the age of 12-14 years (mean 4.8 years). Twelve children were assessed as male, seven as female and in two sex was indeterminate. Three out of 21 child mummies (14.3%) had radiological evidence of purulent infections. In one mummy, a bandage-like structure at the right lower leg was detected that most likely represented a dressing of a skin lesion. CONCLUSIONS: This study appears to be the first to describe radiologically visualized structures consistent with dried pus in ancient Egyptian mummies. This study also appears to be the first to physically demonstrate an original ancient Egyptian dressing. SIGNIFICANCE: These cases may serve as models for further paleopathological investigation. The evidence of an original dressing contributes to our knowledge of ancient Egyptian medicine. LIMITATIONS: CT was used as the only examination method as sampling of the wrapped mummies was not possible. SUGGESTIONS FOR FURTHER RESEARCH: Radiological-pathological correlation in mummies in which physical sampling is available may reveal further insights into purulent infections in ancient Egypt.


Asunto(s)
Momias , Niño , Familia , Femenino , Humanos , Lactante , Masculino , Momias/diagnóstico por imagen , Museos , Paleopatología , Tomografía Computarizada por Rayos X/métodos
6.
PLoS One ; 16(5): e0249955, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33945536

RESUMEN

In paleopathology, morphological and molecular evidence for infection by mycobacteria of the M. tuberculosis complex (MTC) is frequently associated with early death. In the present report, we describe a multidisciplinary study of a well-preserved mummy from Napoleonic times with a long-standing tuberculous infection by M. tuberculosis senso stricto who died at the age of 88 years of focal and non-MTB related bronchopneumonia. The well-preserved natural mummy of the Royal Bavarian General, Count Heinrich LII Reuss-Köstritz (1763-1851 CE), was extensively investigated by macro- and histomorphology, whole body CT scans and organ radiography, various molecular tissue analyses, including stable isotope analysis and molecular genetic tests. We identified signs for a long-standing, but terminally inactive pulmonary tuberculosis, tuberculous destruction of the second lumbar vertebral body, and a large tuberculous abscess in the right (retroperitoneal) psoas region (a cold abscess). This cold abscess harboured an active tuberculous infection as evidenced by histological and molecular tests. Radiological and histological analysis further revealed extensive arteriosclerosis with (non-obliterating) coronary and significant carotid arteriosclerosis, healthy bone tissue without evidence of age-related osteopenia, evidence for diffuse idiopathic skeletal hyperostosis and mild osteoarthrosis of few joints. This suggests excellent living conditions correlating well with his diet indicated by stable isotope results and literary evidence. Despite the clear evidence of a tuberculous cold abscess with bacterioscopic and molecular proof for a persisting MTC infection of a human-type M. tuberculosis strain, we can exclude the chronic MTC infection as cause of death. The detection of MTC in historic individuals should therefore be interpreted with great caution and include further data, such as their nutritional status.


Asunto(s)
Momias/patología , Tuberculosis/patología , ADN Antiguo/química , Humanos , Masculino , Momias/diagnóstico por imagen , Momias/microbiología , Columna Vertebral/diagnóstico por imagen , Columna Vertebral/patología , Tomografía Computarizada por Rayos X , Tuberculosis/diagnóstico por imagen , Tuberculosis/microbiología
7.
Int J Paleopathol ; 33: 137-145, 2021 06.
Artículo en Inglés | MEDLINE | ID: mdl-33930634

RESUMEN

OBJECTIVE: To correlate atherosclerosis (Ath) and osteoarthritis (OA) in mummies from ancient Egypt. MATERIALS: Whole-body CT examinations of 23 mummies from the Ägyptisches Museum und Papyrussammlung, Berlin, Germany, and 22 mummies from the Museo Egizio, Turin, Italy. METHODS: Ath was assessed in five anatomical regions by means of preserved arterial calcifications. OA was assessed using the Kellgren and Lawrence (1957) classification. RESULTS: Statistical analysis revealed no correlation between Ath and total OA. A significant association was found for Ath and the upper limb group for OA grade >1 and for Ath and the lower limb group, consisting mainly of the hip and knee, for OA grade >2 OA. CONCLUSIONS: The association of Ath and advanced OA of the hip and knee is comparable in prevalence to those reported in recent clinical studies, despite the low life expectancy and the different environment and lifestyle of the ancient Egyptians. SIGNIFICANCE: This is the first study to correlate findings of Ath and OA in ancient Egypt statistically. The diseases of Ath and OA are common ailments with enormous and increasing impacts on public health. LIMITATIONS: The large number of cardiovascular diseases was indicated only by arterial calcifications that resisted the post-mortem changes of the mummification process. Also, the assessed OA was on radiological OA. SUGGESTIONS FOR FURTHER RESEARCH: Genomic studies of ancient Egyptian mummies may reveal genetic risk factors for Ath and OA that could be shared in ancient and modern populations.


Asunto(s)
Aterosclerosis , Momias , Osteoartritis , Aterosclerosis/diagnóstico por imagen , Antiguo Egipto , Humanos , Momias/diagnóstico por imagen , Osteoartritis/diagnóstico por imagen , Tomografía Computarizada por Rayos X
9.
PLoS One ; 15(11): e0240900, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33147238

RESUMEN

This study focuses on the multidisciplinary investigation of three stucco-shrouded mummies with mummy portrait from Egypt dating from the late 3rd to the middle of the 4th century AD, corresponding to the late Roman Period. These three mummies were excavated in the early 17th and late 19th centuries in the Saqqara necropolis near the ancient Egyptian capital of Memphis. Two of them experienced an interesting collection history, when they became part of the collection of the Elector of Saxony and King of Poland August II in Dresden, Germany, in 1728. The investigation includes information about the mummies' discovery, collection history and shroud decoration obtained through Egyptological expertise. In addition, information on the state of preservation, technique of artificial mummification, age at death, sex, body height and health of the deceased was achieved through computed tomography (CT) analysis. Research yielded an adult male, a middle-aged female and a young female. Due to the rather poorly preserved bodies of the male and middle-aged female, a specific technique of artificial mummification could not be ascertained. Brain and several internal organs of the well-preserved young female were identified. Wooden boards, beads of necklaces, a hairpin, and metal dense items, such as lead seals, nails and two coins or medallions were discovered. Paleopathological findings included carious lesions, Schmorl's nodes, evidence of arthritis and a vertebral hemangioma. The study revealed insights on the decoration and burial preparation of individuals of upper socioeconomic status living in the late Roman Period, as well as comprehensive bioanthropological information of the deceased.


Asunto(s)
Entierro/métodos , Embalsamiento/métodos , Momias/diagnóstico por imagen , Retratos como Asunto , Religión , Adulto , Entierro/historia , Egipto , Embalsamiento/historia , Femenino , Historia Antigua , Humanos , Masculino , Persona de Mediana Edad , Tomografía Computarizada por Rayos X , Adulto Joven
10.
PLoS One ; 15(9): e0238427, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32936816

RESUMEN

In Graeco-Roman times in the Lower-Egyptian Fayoum region, a painted portrait was traditionally placed over the face of a deceased individual. These mummy portraits show considerable inter-individual diversity. This suggests that those portraits were created separately for each individual. In the present study, we investigated a completely wrapped young infant mummy with a typical mummy portrait by whole body CT analysis. This was used to obtain physical information on the infant and provided the basis for a virtual face reconstruction in order to compare it to the mummy portrait. We identified the mummy as a 3-4 years old male infant that had been prepared according to the typical ancient Egyptian mummification rites. It most probably suffered from a right-sided pulmonary infection which may also be the cause of death. The reconstructed face showed considerable similarities to the portrait, confirming the portrait's specificity to this individual. However, there are some differences between portrait and face. The portrait seems to show a slightly older individual which may be due to artistic conventions of that period.


Asunto(s)
Cara/diagnóstico por imagen , Momias/diagnóstico por imagen , Retratos como Asunto/historia , Arte , Preescolar , Egipto , Cara/anatomía & histología , Historia Antigua , Humanos , Imagenología Tridimensional , Lactante , Masculino , Momias/historia , Interpretación de Imagen Radiográfica Asistida por Computador , Tomografía Computarizada por Rayos X , Imagen de Cuerpo Entero
11.
J Mech Behav Biomed Mater ; 110: 103946, 2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-32957238

RESUMEN

The force experienced while inserting an 18-gauge Tuohy needle into the epidural space or dura is one of only two feedback components perceived by an anaesthesiologist to deduce the needle tip position in a patient's spine. To the best of the authors knowledge, no x-ray validated measurements of these forces are currently available to the public. A needle insertion force recording during an automated insertion of an 18-gauge Tuohy needle into human vertebral segments of four female donors was conducted. During the measurements, x-ray images were recorded simultaneously. The force peaks due to the penetration of the ligamentum supraspinale and ligamentum flavum were measured and compared to the measurements of an artificial patient phantom for a hybrid patient simulator. Based on these force peaks and the slope of the ligamentum interspinale, a mathematical model was developed. The model parameters were used to compare human specimens and artificial patient phantom haptics. The force peaks for the ligamenta supraspinale and flavum were 7.55 ± 3.63 N and 15.18 ± 5.71 N, respectively. No significant differences were found between the patient phantom and the human specimens for the force peaks and four of six physical model parameters. The patient phantom mimics the same resistive force against the insertion of an 18-gauge Tuohy needle. However, there was a highly significant (p < 0.001, effsize = 0.949 and p < 0.001, effsize = 0.896) statistical difference observed in the insertion depth where the force peaks of the ligamenta supraspinale and flavum were detected between the measurements on the human specimens and the patient phantom. Within this work, biomechanical evidence was identified for the needle insertion force into human specimens. The comparison of the measured values of the human vertebral segments and the artificial patient phantom showed promising results.


Asunto(s)
Anestesia Epidural , Ligamento Amarillo , Duramadre , Espacio Epidural , Femenino , Humanos , Agujas
12.
BMC Musculoskelet Disord ; 21(1): 74, 2020 Feb 05.
Artículo en Inglés | MEDLINE | ID: mdl-32024494

RESUMEN

BACKGROUND: The purpose of this retrospective cohort study was to compare treatment strategies of two level-one trauma centers regarding clinical and radiological outcomes focusing on non-osteoporotic AOSpine type A3 fractures of the thoracolumbar spine at levels T11 to L2. METHODS: Eighty-seven patients between 18 and 65 years of age that were treated operatively in either of two trauma centers were included. One treatment strategy includes open posterior stabilization whereas the other uses percutaneous posterior stabilization. Both included additional anterior fusion if necessary. Demographic data, McCormack classification, duration of surgery, hospital stay and further parameters were assessed. Owestry Disability Index (ODI), Visual Analog Scale (VAS) and SF-36 were measured for functional outcome. Bisegmental kyphosis angle, reduction loss and sagittal alignment parameters were assessed for radiological outcome. Follow up was at least 24 months. RESULTS: There was no significant difference regarding our primary functional outcome parameter (ODI) between both groups. Regarding radiological outcome kyphosis angle at time of follow up did not show a significant difference. Reduction loss at time of follow up was moderate in both groups with a significantly lower rate in the percutaneously stabilized group. Surgery time was significantly shorter for posterior stabilization and anterior fusion in the percutaneous group. Time of hospital stay was equal for posterior stabilization but shorter for anterior fusion in the open stabilized group. CONCLUSION: Both treatment strategies are safe and effective showing only minor loss of reduction. Clinical relevant differences in functional and radiographic outcome between the two surgical groups could not be demonstrated. TRIAL REGISTRATION: It was conducted according to ICMJE guidelines and has been retrospectively registered with the German Clinical Trials Registry (identification number: DRKS00015693, 07.11.2018).


Asunto(s)
Fijación Interna de Fracturas/métodos , Cifosis/epidemiología , Procedimientos Quirúrgicos Mínimamente Invasivos/métodos , Complicaciones Posoperatorias/epidemiología , Fracturas de la Columna Vertebral/cirugía , Fusión Vertebral/métodos , Adolescente , Adulto , Anciano , Femenino , Estudios de Seguimiento , Fijación Interna de Fracturas/efectos adversos , Humanos , Cifosis/diagnóstico , Cifosis/etiología , Tiempo de Internación , Vértebras Lumbares/diagnóstico por imagen , Vértebras Lumbares/lesiones , Vértebras Lumbares/cirugía , Masculino , Persona de Mediana Edad , Procedimientos Quirúrgicos Mínimamente Invasivos/efectos adversos , Complicaciones Posoperatorias/diagnóstico , Complicaciones Posoperatorias/etiología , Radiografía , Estudios Retrospectivos , Fusión Vertebral/efectos adversos , Vértebras Torácicas/diagnóstico por imagen , Vértebras Torácicas/lesiones , Vértebras Torácicas/cirugía , Resultado del Tratamiento , Adulto Joven
13.
Anthropol Anz ; 77(1): 75-82, 2020 Feb 13.
Artículo en Inglés | MEDLINE | ID: mdl-31939989

RESUMEN

In the course of a scientific cooperation between the German Mummy Project at the Reiss-Engelhorn-Museen, Mannheim (Germany) and the Musée National d'Histoire et d'Art Luxembourg (Luxembourg), an ancient Egyptian mummy head was analyzed using a multidisciplinary approach including radiocarbon dating, ultra-high resolution computed tomography, physical anthropology, forensic medicine and Egyptology. Dated to the Roman Period, the mummy head belonged to an upper-class woman between 25 and 35 years of age. Computed tomography revealed a lethal blunt force trauma affecting the dorsal parts of the parietal bones, below the intact overlaying soft tissue. Moreover, ancient medical treatment was evidenced through localized shaving of the hair on the affected area, which indicates that efforts have been made to keep the woman alive. This astonishing example of homicide demonstrates the enormous scientific benefit brought by the multidisciplinary investigation of mummified bodies and body parts, and sheds light on life, death and medical care of a woman from Roman Period Egypt.


Asunto(s)
Traumatismos Craneocerebrales , Momias , Heridas no Penetrantes , Adulto , Antiguo Egipto , Femenino , Cabeza , Historia Antigua , Humanos
14.
World Neurosurg ; 134: e847-e854, 2020 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-31715410

RESUMEN

BACKGROUND: There is accumulating evidence of a potential beneficial effect of early surgical intervention after acute cervical spinal cord injury (SCI). However, around one third of all SCIs affect the thoracic spine. This cohort has not been extensively investigated, mainly because of less sensitive clinical readout measures. Apart from regaining full sensorimotor function, improvements in bladder and bowel management remain of the highest priority for patients with chronic paraplegia. Therefore, this study investigates the effect of early decompression (here defined as <8 hours) versus delayed management on neurologic and functional outcome. METHODS: We retrospectively analyzed data from the institutional database, in which follow-up data were collected prospectively according to the European Multicenter Study about Spinal Cord Injury standards. Within a 13-year period, we identified 43 patients who met inclusion and exclusion criteria. Of these, 32 (74%) were managed surgically within the first 8 hours. There was a trend toward a higher rate of patients with clinically complete SCI in the early group at baseline. RESULTS: After 1 year, we did not observe a benefit on the neurologic outcome as assessed via the American Spinal Injury Association Impairment Scale grade. Functional outcome was evaluated using the Spinal Cord Independence Measure (SCIM). The early decompressed group demonstrated significantly improved SCIM 6 (i.e., bladder management) (P < 0.045) and SCIM 9-11 subitems (i.e., mobility, transfer) (P < 0.019). CONCLUSIONS: Early decompression was an independent predictor for improved functional bladder outcome and mobility after 1 year. This effect needs to be studied in future prospective, multicenter studies.


Asunto(s)
Descompresión Quirúrgica/métodos , Procedimientos Neuroquirúrgicos/métodos , Paraplejía/fisiopatología , Traumatismos de la Médula Espinal/cirugía , Tiempo de Tratamiento/estadística & datos numéricos , Vejiga Urinaria Neurogénica/fisiopatología , Adulto , Anciano , Intervención Médica Temprana , Femenino , Humanos , Masculino , Persona de Mediana Edad , Limitación de la Movilidad , Paraplejía/etiología , Recuperación de la Función , Estudios Retrospectivos , Traumatismos de la Médula Espinal/complicaciones , Traumatismos de la Médula Espinal/fisiopatología , Vértebras Torácicas , Resultado del Tratamiento , Vejiga Urinaria Neurogénica/etiología
15.
Ophthalmology ; 127(1): e5, 2020 01.
Artículo en Inglés | MEDLINE | ID: mdl-31864481

Asunto(s)
Ojo , Momias
16.
Int J Paleopathol ; 26: 122-134, 2019 09.
Artículo en Inglés | MEDLINE | ID: mdl-31362163

RESUMEN

OBJECTIVE: The purpose of this study was to develop and provide recommendations for computed tomography (CT) examinations of human mummies. MATERIALS AND METHODS: Based on theoretical considerations and examples, recommendations for use are provided for scanning and image reconstruction parameters. Four examples are presented to illustrate the effect of different CT parameters on image quality. RESULTS: The use of appropriate scanning parameters (detector collimation, pitch factor, rotation time) is known to improve image quality; technical considerations favor using lower tube voltage and higher tube current values for the purposes of scanning of human mummies. The use of appropriate image reconstruction parameters (slice thickness, increment, field of view, reconstruction filters) are the basis for individual reconstructions for the purpose of evaluation, documentation, illustration and data storage. CONCLUSIONS: Downsizing the field of view to the region of interest as done in the clinical radiological routine represents one major tool to improve image quality. SIGNIFICANCE: The provided recommendations should improve CT image quality in mummy studies as well as the handling of image data for reconstructions and storage. LIMITATIONS: The recommendations for CT scanning parameters and image reconstructions were written with relatively new generation CT scanners in mind. Only a few examples of use were chosen and image quality assessment was performed subjectively and not by quantitative measurements.


Asunto(s)
Momias/diagnóstico por imagen , Paleopatología/métodos , Tomografía Computarizada por Rayos X/métodos , Historia Antigua , Humanos , Interpretación de Imagen Radiográfica Asistida por Computador/métodos
17.
Injury ; 50(8): 1478-1482, 2019 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-31227278

RESUMEN

Long bone defects are often treated by bone segment transport with the Ilizarov method requiring months spent with fixator mounted until bony consolidation of the newly formed bone. Shortening of consolidation would allow earlier fixator removal and earlier return to work. In pre-clinical studies parathyroid hormone, increased bone mineral density and mechanical properties of regenerate bone formed during distraction osteogenesis. Clinical studies showed that Teriparatide accelerated fracture healing in patients with osteoporotic fracture of the pelvis, hip, wrist and shoulder. We hypothesized that rhPTH(1-34) (Teriparatide) administered to patients who had undergone distraction osteogenesis, would increase mineralization of the regenerate formed during the consolidation phase. Sixteen patients with tibial defects after infection, underwent bone segment transport and at the time of docking the transport segment, were randomized to 8 weeks treatment with daily subcutaneous 0.20-µg Teriparatide injection followed by 8 weeks with no treatment, or to 8 weeks with no treatment followed by 8 weeks with daily subcutaneous 0.20 µg Teriparatide injection. Bone mineral density (BMD) of the regenerate was measured at the time of docking, 8 weeks after docking and 16 weeks after docking with DEXA. Functional evaluation was performed after one year. The design was a cross-over study. Overall BMD increased 0.14 g/cm2 in 8 weeks without treatment and 0.33 g/cm2 under Teriparatide treatment. After adjustment for a potential phase difference, 8 weeks of Teriparatide treatment led to an additional 0.19 g/cm2 BMD increase (95%-CI:[0.11,0.28], p < 0.001). The ratio of the BMD increase between the two treatments was 0.33/0.14 = 2.43 (CI: [1.21,3.65]). Teriparatide treatment during the consolidation phase of distraction osteogenesis doubled the mineralization rate of the regenerate when compared to no treatment.


Asunto(s)
Conservadores de la Densidad Ósea/administración & dosificación , Densidad Ósea/efectos de los fármacos , Curación de Fractura/efectos de los fármacos , Osteogénesis por Distracción , Osteomielitis/complicaciones , Teriparatido/administración & dosificación , Adulto , Densidad Ósea/fisiología , Estudios Cruzados , Femenino , Curación de Fractura/fisiología , Humanos , Inyecciones Subcutáneas , Masculino , Persona de Mediana Edad , Resultado del Tratamiento
20.
J Neurotrauma ; 36(12): 2020-2027, 2019 06 15.
Artículo en Inglés | MEDLINE | ID: mdl-30489193

RESUMEN

The optimal timing of surgical intervention following spinal cord injury (SCI) remains under debate. Recent studies indicate a potential neurological and functional benefit of early surgery (< 8 h) after cervical SCI. For thoracolumbar SCI syndromes, fewer studies exist. Bladder and bowel dysfunction are highly relevant for these patients and impair their quality of life. Hence, we performed a retrospective study on patients with thoracolumbar SCI who were operated on at our institution and who met inclusion as well as exclusion criteria (n = 58 patients). Follow-up data were collected prospectively within a fixed time schedule over 1 year according to the European Multicenter Study about Spinal Cord Injury protocol. Early decompression was defined as within the first 8 h after injury and was performed in 35 patients. After the follow-up period, the early decompression group showed improved American Spinal Injury Association Impairment Scale (AIS) grades (p < 0.040) and a higher AIS conversion (p < 0.021). Further, these patients demonstrated a higher total Spinal Cord Independence Measure (SCIM) difference (p < 0.005). Special emphasis was placed on the functional bladder and bowel outcome. Here, we observed improved bladder outcome (i.e., SCIM-6 sub-item; p < 0.021) and a trend towards better functional bowel management (i.e., SCIM-7; p < 0.090). Linear regression models showed that early surgery was an independent predictor for higher AIS shifts and improved total SCIM difference. Our data suggests that prompt surgical management after thoracolumbar SCI might have a positive impact on the functional and neurological outcome.


Asunto(s)
Descompresión Quirúrgica/tendencias , Calidad de Vida , Recuperación de la Función/fisiología , Traumatismos de la Médula Espinal/diagnóstico , Traumatismos de la Médula Espinal/cirugía , Adulto , Descompresión Quirúrgica/métodos , Femenino , Estudios de Seguimiento , Humanos , Vértebras Lumbares/lesiones , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Estudios Retrospectivos , Traumatismos de la Médula Espinal/fisiopatología , Vértebras Torácicas/lesiones , Factores de Tiempo
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