CT Assessment of Normal Splenic Size in Children

1994 ◽  
Vol 35 (2) ◽  
pp. 152-154 ◽  
Author(s):  
P. Prassopoulos ◽  
D. Cavouras

The size of the normal spleen was estimated by CT in 153 children, examined with indication unrelated to splenic disease. In each patient the width, thickness, length and volume of the spleen were calculated. Measurements were also normalized to the transverse diameter of the body of the first lumbar vertebra. The spleen underwent significant growth during the first 4 years of life and reached maximum size at the age of 13. There were no differences in splenic volume between boys and girls. Splenic thickness correlated best with normal splenic volume. The strongest correlation was also found between splenic thickness and volume in a group of 45 children with clinically evident splenomegaly. Splenic thickness, an easy-to-use measurement, may be employed in everyday practice to represent splenic volume on CT.

2021 ◽  
Vol 8 ◽  
Author(s):  
Cyrielle Finck ◽  
Paulo Steagall ◽  
Guy Beauchamp

The purpose of the study was to determine the effects of intramuscular butorphanol with dexmedetomidine or alfaxalone on feline splenic size, echogenicity, and attenuation using ultrasound and computed tomography (CT). Ten healthy research cats underwent ultrasound and CT without sedation (controls), 15 min after protocol AB (alfaxalone 2 mg/kg and butorphanol 0.2 mg/kg) and 10 min after protocol DB (dexmedetomidine 7 μg/kg and butorphanol 0.2 mg/kg), with a one-week wash-out period between each sedation, using a cross-over study design. Images were randomized and anonymized for evaluation by a board-certified radiologist. On ultrasound, the sedative protocols affected splenic thickness, at the body and the tail (p = 0.002 and 0.0003, respectively). Post-hoc tests revealed that mean ± SEM thickness was greater after AB (body: 10.24 ± 0.30 mm; tail: 7.96 ± 0.33 mm) than for the control group (body: 8.71 ± 0.30 mm; tail: 6.78 ± 0.33 mm), while no significant difference was observed following DB. Splenic echogenicity was unchanged between treatments (p = 0.55). On CT, mean ± SEM splenic volume was increased after AB (37.82 ± 1.91 mL) compared to the control group (20.06 ± 1.91 mL) (p < 0.0001), but not after DB (24.04 ± 1.91 mL). Mean splenic attenuation increased after AB (p = 0.0009), but not DB. Protocol DB may be preferable for profound sedation in cats while avoiding changes in feline splenic imaging. When protocol AB is selected, splenomegaly should be expected, though mild on ultrasound. The increased splenic attenuation after AB is unlikely to be clinically relevant.


2021 ◽  
pp. 136843102199664
Author(s):  
Chris Shilling

During the past two decades, there has been a significant growth of sociological studies into the ‘body pedagogics’ of cultural transmission, reproduction and change. Rejecting the tendency to over-valorise cognitive information, these investigations have explored the importance of corporeal capacities, habits and techniques in the processes associated with belonging to specific ‘ways of life’. Focused on practical issues associated with ‘knowing how’ to operate within specific cultures, however, body pedagogic analyses have been less effective at accounting for the incarnation of cultural values. Addressing this limitation, with reference to the radically diverse norms involved historically and contemporarily in ‘vélo worlds’, I develop Dewey’s pragmatist transactionalism by arguing that the social, material and intellectual processes involved in learning physical techniques inevitably entail a concurrent entanglement with, and development of, values.


2021 ◽  
Vol 14 (9) ◽  
pp. e241005
Author(s):  
Akiyo Matsumoto ◽  
Takahiko Akao ◽  
Hiroshi Matsumoto ◽  
Naoki Kobayashi ◽  
Makoto Kamiya

A 67-year-old man who had been pinned between a basket crane and a tree complained of severe pain in his lower back and a decreased appetite. Laparotomy after decompressing the gastrointestinal tract revealed incarceration of an ileal loop within a fractured third lumbar vertebra. The damaged bowel was resected, and an end-to-end anastomosis was performed. Once the patient’s condition had stabilised, posterior lumbar fixation was performed. There were no abdominal complications or lower limb neurological deficits during the follow-up period. Enhanced CT and MRI had been helpful in making the diagnoses. Histopathological examination revealed the aetiology of the traumatic incarceration: the intestine had been pinched as the disc space closed, and the body attempted to return to its original state by exerting countertraction.


2020 ◽  
pp. 112070002090433
Author(s):  
Keong-Hwan Kim ◽  
Jun Hee Lee ◽  
Eic Ju Lim

Introduction: We performed a computed tomography analysis of muscle composition characteristics in hip fracture patients and non-hip fracture controls. Methods: In total, 43 patients (9 men, 34 women) were included in the hip fracture group, matched 1 to 1 with non-hip fracture controls. Muscle cross-sectional areas were measured in axial CT scan at the body level of the 4th lumbar vertebra (L4), intervertebral disc level between the 5th lumbar vertebra and the 1st sacral vertebra (L5-S1) and just below level of the lesser trochanter (LT). Attenuation was also evaluated through the mean Hounsfield unit (HU) in these areas. Results: The cross-sectional area per weight (CSA/Wt, mm2/kg) of psoas muscle and extensor muscles of the spine showed a significant difference between the 2 groups at both L4 (9.7 vs. 12.4, p  < 0.001 and 26.3 vs. 29.2, p  = 0.025) and L5-S1 (9.6 vs. 11.5, p  = 0.001 and 8.8 vs. 10.3, p  = 0.041) levels. In addition, the HU of these muscles differed significantly between the 2 groups at both L4 (33.3 vs. 47.6, p  < 0.001 and 13.7 vs. 30.2, p  < 0.001) and L5-S1 (39.7 vs. 52.6, p  < 0.001 and 3.8 vs. 15.1, p  = 0.012) levels. There was no difference in abdominal wall, gluteal, or thigh compartment musculature between the groups. Conclusions: Poorer quantity and quality of psoas muscle and extensor muscles of the spine rather than whole body muscles may contribute to falls and were characteristic features of the hip fracture patients in this series. These findings should be considered when recommending a preventive exercise and rehabilitation protocol.


1929 ◽  
Vol 25 (10) ◽  
pp. 1115-1115
Author(s):  
I. Tsimkhes

B. Hubrich (Zentralbl. F. Chir. 1929, No. 33) observed 2 cases of primary acute purulent osteomyelitis: in one case of the left transverse process and part of the body of the IV lumbar vertebra; in another case, partial damage to the body of the V lumbar vertebra was observed.


2020 ◽  
Vol 9 (11) ◽  
pp. 3761
Author(s):  
Takato Ikeda ◽  
Yoshiaki Kinoshita ◽  
Yusuke Ueda ◽  
Tomoya Sasaki ◽  
Hisako Kushima ◽  
...  

Background: Diagnostic criteria of idiopathic pleuroparenchymal fibroelastosis (IPPFE) were recently proposed, including physiological criteria of the body mass index (BMI) and percentage of the predicted values of residual volume (RV)/total lung capacity (TLC) (RV/TLC %pred.). The aim of this study was to evaluate (i) whether the physiologic criteria are useful for the diagnosis and (ii) whether the flat chest index, defined as the ratio of the anteroposterior diameter to the transverse diameter of the thoracic cage, could be an alternative parameter to RV/TLC %pred. Methods: We selected consecutive IPPFE patients and idiopathic pulmonary fibrosis (IPF) patients. We examined the diagnostic sensitivity and specificity of the physiological criteria and flat chest index for differentiating IPPFE patients from IPF patients. Results: This study included 37 IPPFE patients and 89 IPF patients. The physiological criteria distinguished IPPFE patients from IPF patients with a sensitivity of 78.6% and specificity of 88.0%. The combination of the flat chest index and BMI was also effective for differentiation (sensitivity of 82.1% and specificity of 89.3%). Conclusion: We verified the good performance of the physiologic criteria in a different cohort. When the RV/TLC is not measured, using the flat chest index instead of RV/TLC %pred. may be reasonable.


Author(s):  
Kosuri Kalyan Chakravarthi ◽  
Siddaraju K. S. ◽  
Nelluri Venumadhav ◽  
Sangeeta Atamaram Bali

Background: The sternum is one of the skeleton parts with frequently detected variation in cross-sectional images or autopsy series. The anatomical or congenital variations of the sternum in the anterior chest wall may involve malignancies, injuries or severe traumas. The aim of the study was undertaken to evaluate the incidence of anatomical and congenital variations of human dry sternum bones.Methods: This study was carried out on 120 dry human sternum bones irrespective of age and sex at Varun Arjun medical college- Banthra, UP, KMCT Medical College, Manassery-Calicut and Melaka Manipal Medical College-Manipal. All the sternum bones were macroscopically inspected for the anatomical and congenital variations of human dry sternum bones. Photographs of the anatomical and congenital variations were taken for proper documentation.Results: Complete sternal foramina in the body of the sternum were noted in 9 bones (7.5%), with an average vertical diameter of 17mm and transverse diameter of 16mm (The highest vertical diameter of 19mm and transverse diameter of 17mm was noted); Incomplete sternal foramina in the body of the sternum were noted in 4 bones (3.3%);Complete sternal foramina in the xiphoid process of the sternum were noted in 7 bones (5.8%) with an average vertical diameter of 6mm and transverse diameter of 8mm; Unusual complete sternal foramina in the body and incomplete sternal foramina in the xiphoid process of the sternum were noted in 8 bones (6.6%); Very rare longer xiphoid process (7.3 cm) with complete sternal foramina was noted in 7 bone (5.8%); Unusual Longer xiphoid process with an average length of 6.7cm with sharp bifid ends was noted in 8 bones (6.6%).Conclusions: The knowledge of existence of anatomical variants and congenital foramina of sternum and xiphoid process found in our study is essential, especially for bone marrow sampling, radiology (X - ray, CT, MRI, and USG) reporting, pathology autopsy and forensic medicine post-mortem reporting and patoacupuncture practice to avoid complications during various surgical procedures.


2020 ◽  
Vol 48 ◽  
Author(s):  
Fernando Bezerra Da Silva Sobrinho ◽  
Ivan Felismino Charas Dos Santos ◽  
Claudia Valéria Seullner Brandão ◽  
Sheila Canevese Rahal ◽  
César Passareli Cândido Lobo ◽  
...  

Background: Acute spinal traumas can lead to irreversible damage associated with vascular and inflammatory changes in neural tissue. Since spine and spinal cord traumas have an unfavorable prognosis in small animals, and reports of the use of Steinmann pins and polymethylmethacrylate repair of lumbar vertebra fracture-luxation in puppies are rare in the literature, the present paper aimed to report the surgical treatment of transversal fracture through the body of the fourth lumbar vertebra, with dorsocranial displacement of the caudal fragment by using Steinmann pins and polymethylmethacrylate in a 7-month-old Labrador Retriever male dog.Case: A 7-month-old intact male Labrador Retriever dog, weighing 24.0 kg was attended at School Veterinary Hospital with a history of hit by car and paraplegia of the hind limbs. On neurological examination was observed no proprioception and no deep pain sensitivity on the both pelvic limbs. The lumbar spinal palpation showed intense pain, and the motor function and patellar reflexes were reduced. The values of haematological and biochemical analysis remained within the reference values for the species. Radiographs revealed a transversal fracture through the body of the fourth lumbar vertebra, with dorsocranial displacement of the caudal fragment, and was decided to perform a surgical treatment by open reduction and internal fixation of the fracture. The dog was positioned in ventral recumbency for surgery, and a dorsal midline incision was made from the second lumbar vertebra to the sixth lumbar vertebra. Two crossed 1.5 mm Kirschner wires were placed through the caudal articular facets of the fourth lumbar vertebra to provide initial stability. Two 2.0 mm Steinmann pins were placed at 60° angle of the bodies of the second and fifth lumbar vertebrae, and third and fourth lumbar vertebrae. This procedure was repeated on the other side of the vertebral bodies. Sixty grams of polymethylmethacrylate bone cement was applied and the fixation was checked for stability. Muscular, subcutaneous tissue and skin was closed routinely. The dog was paraplegic without any pain and used a wheelchair to assist in locomotion, although it still had urinary and faecal incontinence; no tail control; and the implants were not removed.Discussion: Lumbar vertebral injuries, as in the present case frequently, occur secondary to severe trauma (e.g. hit by car) and seem to have a characteristic fracture pattern. The patient became paraplegic due to spinal cord injury and failure of sensitivity and elimination of urine and feces which can be associated with progressive destruction of neuronal tissue due to secondary vascular and inflammatory events. The radiographic exam was used to confirm the spinal injury and determine whether by conservative or surgical treatment. The treatment choice is related to the number of fractured compartments, and the presence or not of compression. Fractures in two or more compartments are indicative of surgical treatment, similar as the present case. Use of Steinmann pins was to make a rigid fixing system compared with block plates used for the same function. Use of polymethylmethacrylate may also become a complication due to the infection, for this reason was prescribed an antibiotic for 15 days. This procedure proved to be effective since the dog showed no signs of infection. According to the characteristics of the present case report, the use of Steinmann pins and polymethylmethacrylate for repair of transversal fracture through the body of the fourth lumbar vertebra, with dorsocranial displacement of the caudal fragment provided an effective and practical means of stabilisation, promoting decompression, and thus, improving the patient's quality of life.


2016 ◽  
Author(s):  
Richard C. Tillquist ◽  
Lauren G. Shoemaker ◽  
Kevin Bracy Knight ◽  
Aaron Clauset

Body size is a key physiological, ecological, and evolutionary characteristic of species. Within most major clades, body size distributions follow a right-skewed pattern where most species are relatively small while a few are orders of magnitude larger than the median size. Using a novel database of 742 extant and extinct primate species’ sizes over the past 66 million years, we find that primates exhibit the opposite pattern: a left-skewed distribution. We investigate the long-term evolution of this distribution, first showing that the initial size radiation is consistent with plesiadapiformes (an extinct group with an uncertain ancestral relationship to primates) being ancestral to modern primates. We calculate the strength of Cope’s Rule, showing an initial tendency for descendants to increase in size relative to ancestors until the trend reverses 40 million years ago. We explore when the primate size distribution becomes left-skewed and study correlations between body size patterns and climactic trends, showing that across Old and New World radiations the body size distribution initially exhibits a right-skewed pattern. Left-skewness emerged early in Old World primates in a manner consistent with a previously unidentified possible maximum body size, which may be mechanistically related to primates’ encephalization and complex social groups.


2020 ◽  
Vol 22 (11) ◽  
pp. 45-49
Author(s):  
Alekseeva V.A. ◽  
Zolotaryov N.A.

The aim of the work was to identify the features of biochemical blood parameters of Yakut men with type 2 diabetes depending on the Rees-Eizenk somatotype. We examined 40 men of yakut nationality with an established diagnosis of "type 2 diabetes", aged 38 to 69 years (average age 57,4 years). The anthropometric study included measurements of body length, body weight, body circumference (chest circumference, waist and buttock circumference), and body diameters (transverse diameter of the chest, anterior-posterior diameter of the chest). The body mass index (BMI) was calculated. Somatotyping was performed using the Rees-Eizenk index. The index value of the examined men was divided into pyknic, normosthenic and asthenic somatotype. Data from the biochemical blood test were copied from the patients ' medical history. All laboratory tests were conducted in the clinical and diagnostic laboratory of the Yakut city clinical hospital. Statistical processing of the obtained scientific material was carried out by the method of variation statistics using the SPSS application software package for Windows (version 17,0). The analysis was performed using parametric and nonparametric statistics. An anthropometric study of men with type 2 diabetes found that half of the subjects were obese according to their body mass index. A somatotypological study on the Rees-Eizenk index found a predominance of individuals with a pyknical somatotype. Asthenic somatotype was not detected in the examined group. More pronounced deviations of biochemical parameters of the pyknic men's blood from the standard parameters were found. The data obtained indicate a greater susceptibility to the development of type 2 diabetes in men with a pyknical somatotype.


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