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1.
Anat Rec (Hoboken) ; 294(7): 1083-92, 2011 Jul.
Article in English | MEDLINE | ID: mdl-21634023

ABSTRACT

Endocasts provide evidence on size and shape characteristics, blood supply trajectories, and neurological features of the brain, allowing comparative analyses of fossil hominins crucial to our understanding of human brain evolution. Here, we assess the morphological features of the virtual endocast of the Cioclovina Upper Paleolithic calvarium, one of the earliest reliably dated European modern human fossils. Our study was conducted on a computed tomography (CT) scan of the original specimen. The endocranial profile was approximated via a semiautomatic segmentation of the CT data. Virtual reconstructions of the endocast were used for assessing the morphological features of the endocranium and for the estimation of the endocranial volume. Cioclovina exhibits a clockwise torque with a small anterior extension of the left frontal lobe over the right one and a protrusion of the right occipital lobe over the left, most likely due to the superior sagittal sinus coursing over the occipital pole. There is an obvious right predominance of the posterior drainage system. Interestingly, the area of the frontal sinus is occupied by dense bony tissue with small air cells corresponding probably to a natural bony loss in the diploë and to vascular spaces. An estimated endocranial volume of 1498.53 cc was calculated. The convolutional details of the third inferior frontal gyrus (Broca's caps) are indistinguishable from those found in modern Homo sapiens, and the left occipital lobe appears wider than the right, a possible correlate of right-handedness. Our metric analysis of endocranial measurements also aligns Cioclovina with modern humans.


Subject(s)
Biological Evolution , Brain/anatomy & histology , Fossils , Skull/anatomy & histology , Brain/diagnostic imaging , Functional Laterality , Humans , Romania , Skull/diagnostic imaging , Tomography, X-Ray Computed/methods
2.
Pneumologia ; 60(1): 40-6, 2011.
Article in Romanian | MEDLINE | ID: mdl-21548199

ABSTRACT

UNLABELLED: Modern radiotherapy decreased the number and severity of the effects of irradiation on the lung. Yet, the increased cancer incidence makes the related radiation injuries to remain actual, radiotherapy being frequently used in cancer treatment. Aim of the study consists in analysis of the radiological pattern of radiation induced lung disease due to radiotherapy for breast cancer. MATERIAL AND METHOD: Sixty-eight female patients were evaluated for clinical and radiological suspicion of radiation pneumonitis after radiotherapy for breast cancer between 2001 and 2009 in "Marius Nasta" Institute of Pneumophtiziology, Bucharest. The following procedures were performed: medical history, physical examination, chest radiography and CT-scan (in a subgroup of 27 patients). Radiotherapy toxicity was evaluated based on the RTOG/EORTC (Radiation Therapy Oncology Group/European Organization for the Research and Treatment of Cancer) classification and radiological lesions based on Arriagada classification. RESULTS: Fifty patients (73.5%) were symptomatic (fever, dry cough, dyspnea, chest pain, fatigability), the other 18 were asymptomatic. Symptoms were mild to moderate corresponding to grade 1 (27 patients, 39.7%) or grade 2 (23 patients, 33.8%) according to RTOG/EORTC scale. All patients had radiological lesions: 25 patients (36.7%) had grade 2 lesions (linear opacities), 25 patients (36.7%) had grade 3 lesions (patchy opacities) and 18 patients (26.5%) had grade 4 lesions (dense opacities), according to Arriagada classification. Symptoms were more frequent in patients with extensive lesions on chest radiography. CT-scan, performed in 27 patients, showed more accurate images. CONCLUSIONS: Chest radiography remains the simplest method in screening for radiation pneumonitis and monitoring its outcome. Adverse effects secondary to radiotherapy are usually mild and self-limited, and the most difficult task remains the differential diagnosis with infections and cancer relapse.


Subject(s)
Breast Neoplasms/radiotherapy , Radiation Pneumonitis/diagnostic imaging , Adult , Aged , Breast Neoplasms/diagnostic imaging , Diagnosis, Differential , Female , Humans , Middle Aged , Radiation Dosage , Radiation Pneumonitis/etiology , Radiography , Radiotherapy Planning, Computer-Assisted , Retrospective Studies , Risk Assessment , Severity of Illness Index , Time Factors
3.
Rom J Gastroenterol ; 14(2): 129-34, 2005 Jun.
Article in English | MEDLINE | ID: mdl-15990931

ABSTRACT

BACKGROUND: Acute pancreatitis (AP) is a proteiform disease which may lead to various complications. Pancreatic pseudocysts and fluid collections are among the most frequent of them. The aim of our study was to find predictive factors of their occurrence. METHODS: We carried out a retrospective cohort study comprising one year patients admitted to our department with AP. Fisher's exact and U Mann Whitney tests were used for correlations, with a probability of error < 5% (p<0.05). RESULTS: We included 62 patients with a mean age of 49 years; 77.4% were males. AP etiology was due to alcohol (58.1%), biliary disorders (22.6%), hyper-triglycerides (8.1%) and post-ERCP (3.2%). Pancreatic cancer was revealed in (6.5%) patients. From the whole group 2 patients (3.2%) died. There were 22 patients with pseudocysts (35.5%) and 13 patients with acute fluid collections (21%). Multiple pseudocysts were present in 12 cases (54.5%), mean diameter was 39.5 mm. Pancreatic head localization was most frequent (63.6%). Alcoholic etiology was associated with acute pseudocysts formation (p=0.007) as well as lower values of alkaline phosphatase (96 U/L versus 286 U/L, p = 0.016). The area under the receiver operating characteristics curve demonstrated values of alkaline phosphatase < 2 x upper normal values were predicting pseudocyst occurrence with > 90% specificity. Presence of ascites predicted formation of acute fluid collections, (p < 0.001). CONCLUSIONS: Alcoholic etiology and low values of serum alkaline phosphatase seem to predict pseudocysts formation in acute pancreatitis, while ascites forecast acute fluid collections occurrence.


Subject(s)
Ascites/diagnostic imaging , Pancreatic Pseudocyst/diagnostic imaging , Pancreatitis, Alcoholic/complications , Acute Disease , Ascites/epidemiology , Ascites/etiology , Diagnosis, Differential , Female , Follow-Up Studies , Humans , Incidence , Lipase/blood , Male , Middle Aged , Pancreatic Pseudocyst/epidemiology , Pancreatic Pseudocyst/etiology , Pancreatitis, Alcoholic/diagnosis , Pancreatitis, Alcoholic/enzymology , Predictive Value of Tests , Retrospective Studies , Risk Factors , Severity of Illness Index , Ultrasonography
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