Thirteen patients, aged 2-17 years, were treated because of primary solid tumours of head and nec... more Thirteen patients, aged 2-17 years, were treated because of primary solid tumours of head and neck location at the Department of Children Hematology and Oncology in Lublin. The authors analyzed clinical symptoms before diagnosis and the duration of these symptoms as well as the kind of tumours. In all cases the tumour was diagnosed on histopathological examination: soft tissue sarcomas--9 children, lymphoepithelioma--4 ones. The prognosis and treatment were estimated.
Annales Universitatis Mariae Curie-Sklodowska. Sectio D: Medicina, 2002
The application of Power Doppler mode examination introduced the assessment of vascularisation an... more The application of Power Doppler mode examination introduced the assessment of vascularisation and measurement of blood flow parameters in lymph node's vessels as a differentiating criterion of benign and malignant lymphadenopathy. However, those criteria appeared insufficient in evaluation of the malignancy grade of enlarged lymph nodes, especially in the cases of lymph nodes with invisible or scantly visible vascularisation in Power Doppler mode. Introducing contrast media in ultrasonographic examinations enabling intensification of the Doppler signal even by 20 dB creates the hope of increasing diagnostic efficacy of ultrasonography in evaluation of vascularisation in lymph nodes enlargement. The purpose of the study was to define the usefulness of ultrasonographic contrast media (Levovist), 3D presentation and harmonic imaging in differential diagnosis of lymph nodes enlargement in children. 32 children with cervical lymph nodes enlargement underwent examination with ultraso...
Study design, materials and methods Four ultrasound phantoms were created each with a specific fu... more Study design, materials and methods Four ultrasound phantoms were created each with a specific function. The phantoms simulated 1) Anterior, 2) Posterior (Figure 1), 3) Levator ani, and 4) Endoanal compartments. A 40 question internet based interactive test using ultrasound images simulating normal anatomy (Figure 2) from the phantoms was administered to six 3D ultrasound imaging experts (2 UROGYN, 2 radiologists, one sonographer, and one colorectal). For each of four phantoms, the accuracy of the model was calculated by taking the correct answers by all readers and dividing them by total number of questions. For each question >67% (4/6 readers) agreement amongst experts was deemed as successful simulation of normal anatomy. The phantom specific agreement was calculated by dividing the total number of agreements by total number of questions for each phantom. Interclass coefficient was determined to assure consistency amongst readers. A full day structured course was given to 32 c...
Za 1044 dni strachu, bolu i smrodu Zbigniew Gora chce od polski 17 milionow zlotych. To ogromna k... more Za 1044 dni strachu, bolu i smrodu Zbigniew Gora chce od polski 17 milionow zlotych. To ogromna kwota. Ale czy w ogole mozna wycenic stracone zycie spedzone...
Thirteen patients, aged 2-17 years, were treated because of primary solid tumours of head and nec... more Thirteen patients, aged 2-17 years, were treated because of primary solid tumours of head and neck location at the Department of Children Hematology and Oncology in Lublin. The authors analyzed clinical symptoms before diagnosis and the duration of these symptoms as well as the kind of tumours. In all cases the tumour was diagnosed on histopathological examination: soft tissue sarcomas--9 children, lymphoepithelioma--4 ones. The prognosis and treatment were estimated.
Annales Universitatis Mariae Curie-Sklodowska. Sectio D: Medicina, 2002
The application of Power Doppler mode examination introduced the assessment of vascularisation an... more The application of Power Doppler mode examination introduced the assessment of vascularisation and measurement of blood flow parameters in lymph node's vessels as a differentiating criterion of benign and malignant lymphadenopathy. However, those criteria appeared insufficient in evaluation of the malignancy grade of enlarged lymph nodes, especially in the cases of lymph nodes with invisible or scantly visible vascularisation in Power Doppler mode. Introducing contrast media in ultrasonographic examinations enabling intensification of the Doppler signal even by 20 dB creates the hope of increasing diagnostic efficacy of ultrasonography in evaluation of vascularisation in lymph nodes enlargement. The purpose of the study was to define the usefulness of ultrasonographic contrast media (Levovist), 3D presentation and harmonic imaging in differential diagnosis of lymph nodes enlargement in children. 32 children with cervical lymph nodes enlargement underwent examination with ultraso...
Study design, materials and methods Four ultrasound phantoms were created each with a specific fu... more Study design, materials and methods Four ultrasound phantoms were created each with a specific function. The phantoms simulated 1) Anterior, 2) Posterior (Figure 1), 3) Levator ani, and 4) Endoanal compartments. A 40 question internet based interactive test using ultrasound images simulating normal anatomy (Figure 2) from the phantoms was administered to six 3D ultrasound imaging experts (2 UROGYN, 2 radiologists, one sonographer, and one colorectal). For each of four phantoms, the accuracy of the model was calculated by taking the correct answers by all readers and dividing them by total number of questions. For each question >67% (4/6 readers) agreement amongst experts was deemed as successful simulation of normal anatomy. The phantom specific agreement was calculated by dividing the total number of agreements by total number of questions for each phantom. Interclass coefficient was determined to assure consistency amongst readers. A full day structured course was given to 32 c...
Za 1044 dni strachu, bolu i smrodu Zbigniew Gora chce od polski 17 milionow zlotych. To ogromna k... more Za 1044 dni strachu, bolu i smrodu Zbigniew Gora chce od polski 17 milionow zlotych. To ogromna kwota. Ale czy w ogole mozna wycenic stracone zycie spedzone...
Uploads
Papers by Paweł Wieczorek