This document discusses the use of Doppler ultrasound in diagnosing placental invasion abnormalities. It defines placenta accreta, increta, and percreta as abnormal placenta attachments that can be life-threatening. The rate of these conditions has increased with rising C-section rates. Doppler ultrasound signs suggestive of invasion include irregular lacunae with turbulent flow within the placenta, loss of the retroplacental zone, and thin or disrupted bladder interfaces. Color Doppler can detect diffuse lacunar flow and hypervascularity at bladder junctions. 3D power Doppler provides clearer views of vascular abnormalities. Proper prenatal diagnosis allows time to plan a safer delivery for these high-risk pregnancies.
This document discusses placental invasion and its ultrasound diagnosis. It defines placental accreta, increta, and percreta as abnormal placental attachments that can be life-threatening. The incidence of these conditions has increased with rising C-section rates. Proper prenatal ultrasound diagnosis allows for well-planned management and decreases morbidity. Grayscale, color Doppler, and 3D power Doppler ultrasound can detect signs like lacunae, vascular lakes, and myometrial thinning that suggest placental invasion. MRI may also help diagnosis but ultrasound remains the primary diagnostic tool due to its availability and low cost.
This document provides information on placental grading and ultrasound appearance of the placenta. It describes the four grades of placental maturity based on ultrasound findings. Grade 0 is seen in the first trimester and is characterized by a smooth echopattern. Grades 1-3 are seen later in pregnancy and are distinguished by the presence and pattern of calcifications. Abnormal placenta features like circumvallate, succenturiate lobe, and membranous placentas are also described. The document concludes with descriptions of twinning ultrasound signs and examples of placental hematomas.
This document discusses imaging of the placenta. Sonography is the preferred imaging modality for evaluating the placenta due to its ability to characterize tissue without radiation exposure. Magnetic resonance imaging can provide additional information, particularly for invasive placental processes like placenta accreta. Computed tomography has a limited role due to poorer tissue characterization and radiation risk to the fetus. The document describes normal placental anatomy and variants, as well as placental pathologies that can cause antepartum hemorrhage like placenta previa, placental abruption, and placental hematomas.
This document discusses various ultrasound findings related to the placenta:
- Images show a normal placenta that is relatively homogeneous in texture with a hypoechoic retroplacental clear space.
- Other findings discussed include subchorionic cysts, velamentous cord insertion, vesicular mole, placental calcification, grading of the placenta, chorioangioma, succenturiate placenta, circumvallate placenta, venous lakes, and placenta previa. These images provide examples of ultrasound appearances of various normal and abnormal placental conditions.
El documento describe la placenta, incluyendo su morfología, partes fetal y materna, circulación fetal, funciones, fisiología del transporte, endocrinología, variaciones de forma y anormalidades. La placenta es un órgano temporal que permite el intercambio de nutrientes y gases entre la madre y el feto durante el embarazo.
Presentation1, radiological imaging of placenta accreta.Abdellah Nazeer
1. The document discusses radiological imaging of placenta accreta, specifically focusing on ultrasound and MRI findings.
2. Key ultrasound findings that suggest placenta accreta include placental lacunae, disruption of normal color Doppler blood flow patterns in the myometrium, loss of the retroplacental clear space, and reduced myometrial thickness.
3. Important MRI findings include uterine bulging, heterogeneous placental signal intensity, and dark intraplacental bands on T2-weighted images. Visualization of direct placental invasion of the bladder is also suggestive of placenta percreta.
Doppler ultrasound can be used in obstetrics and gynecology in several ways. It allows assessment of blood flow in various fetal and maternal vessels. In pregnancy, Doppler is commonly used to evaluate blood flow in the umbilical artery, middle cerebral artery, uterine arteries, ductus venosus and other vessels. Abnormal flow patterns in these vessels can indicate fetal growth restriction, hypoxia, or the risk of conditions like preeclampsia. Doppler provides important information about fetal well-being and helps manage high-risk pregnancies.
This document discusses the use of Doppler ultrasound in diagnosing placental invasion abnormalities. It defines placenta accreta, increta, and percreta as abnormal placenta attachments that can be life-threatening. The rate of these conditions has increased with rising C-section rates. Doppler ultrasound signs suggestive of invasion include irregular lacunae with turbulent flow within the placenta, loss of the retroplacental zone, and thin or disrupted bladder interfaces. Color Doppler can detect diffuse lacunar flow and hypervascularity at bladder junctions. 3D power Doppler provides clearer views of vascular abnormalities. Proper prenatal diagnosis allows time to plan a safer delivery for these high-risk pregnancies.
This document discusses placental invasion and its ultrasound diagnosis. It defines placental accreta, increta, and percreta as abnormal placental attachments that can be life-threatening. The incidence of these conditions has increased with rising C-section rates. Proper prenatal ultrasound diagnosis allows for well-planned management and decreases morbidity. Grayscale, color Doppler, and 3D power Doppler ultrasound can detect signs like lacunae, vascular lakes, and myometrial thinning that suggest placental invasion. MRI may also help diagnosis but ultrasound remains the primary diagnostic tool due to its availability and low cost.
This document provides information on placental grading and ultrasound appearance of the placenta. It describes the four grades of placental maturity based on ultrasound findings. Grade 0 is seen in the first trimester and is characterized by a smooth echopattern. Grades 1-3 are seen later in pregnancy and are distinguished by the presence and pattern of calcifications. Abnormal placenta features like circumvallate, succenturiate lobe, and membranous placentas are also described. The document concludes with descriptions of twinning ultrasound signs and examples of placental hematomas.
This document discusses imaging of the placenta. Sonography is the preferred imaging modality for evaluating the placenta due to its ability to characterize tissue without radiation exposure. Magnetic resonance imaging can provide additional information, particularly for invasive placental processes like placenta accreta. Computed tomography has a limited role due to poorer tissue characterization and radiation risk to the fetus. The document describes normal placental anatomy and variants, as well as placental pathologies that can cause antepartum hemorrhage like placenta previa, placental abruption, and placental hematomas.
This document discusses various ultrasound findings related to the placenta:
- Images show a normal placenta that is relatively homogeneous in texture with a hypoechoic retroplacental clear space.
- Other findings discussed include subchorionic cysts, velamentous cord insertion, vesicular mole, placental calcification, grading of the placenta, chorioangioma, succenturiate placenta, circumvallate placenta, venous lakes, and placenta previa. These images provide examples of ultrasound appearances of various normal and abnormal placental conditions.
El documento describe la placenta, incluyendo su morfología, partes fetal y materna, circulación fetal, funciones, fisiología del transporte, endocrinología, variaciones de forma y anormalidades. La placenta es un órgano temporal que permite el intercambio de nutrientes y gases entre la madre y el feto durante el embarazo.
Presentation1, radiological imaging of placenta accreta.Abdellah Nazeer
1. The document discusses radiological imaging of placenta accreta, specifically focusing on ultrasound and MRI findings.
2. Key ultrasound findings that suggest placenta accreta include placental lacunae, disruption of normal color Doppler blood flow patterns in the myometrium, loss of the retroplacental clear space, and reduced myometrial thickness.
3. Important MRI findings include uterine bulging, heterogeneous placental signal intensity, and dark intraplacental bands on T2-weighted images. Visualization of direct placental invasion of the bladder is also suggestive of placenta percreta.
Doppler ultrasound can be used in obstetrics and gynecology in several ways. It allows assessment of blood flow in various fetal and maternal vessels. In pregnancy, Doppler is commonly used to evaluate blood flow in the umbilical artery, middle cerebral artery, uterine arteries, ductus venosus and other vessels. Abnormal flow patterns in these vessels can indicate fetal growth restriction, hypoxia, or the risk of conditions like preeclampsia. Doppler provides important information about fetal well-being and helps manage high-risk pregnancies.
Breu tutorial de com funciona les Google apps de la intranet de "La Meva XTEC".
En aquesta primera part es parla de correu, contactes, xat, tasques i calendari.
1. SAFATES PRINCIPALS:
- Safata d’entrada: Mostra tots els correus rebuts.
- Destacats: Es troben els correus que tu has marcat amb la estrella.
- Important: Tots els correus rebuts es traslladen a importants i per desmarcar-los has de clicar
en la fletxa al costat de l’estrella.
- Enviats: Es troben tots els correus que s’han enviat.
- Esborranys: Correus que no s’han arribat a enviar però on s’hi han escrit.
1
CORREU:
- Correu: Mostra la safata principal de correus rebuts.
- Contactes: S’hi mostren tots els contactes que s’hi han agregat.
- Tasques: S’obre una finestra que mostra les tasques que t’has apuntat que has de fer.
ACCÉS A LA RESTA DE SERVEIS DE GOOGLE:
- Calendari: Ensenya el calendari.
- Documents: Mostra tots els documents que hi has guardat.
- Llocs web: Hi han totes les pàgines web que has guardat on hi pots accedir-hi freqüentment.
- Grups: Mostra tots els grups on hi ets agregat.
- Contactes: Surten totes les persones que tens agregades.
2. 2
SORTIDA I CONFIGURACIÓ DEL COMPTE GENERAL:
Mostra el teu g-mail i la configuració del teu compte en general.
CONFIGURACIÓ DEL CORREU:
Surt una pestanya amb varies opcions per configurar el teu correu al teu gust.
SAFATES DE MISSATGES AMB ETIQUETES:
Depenent de l’etiqueta que li poses a cada correu, es trasllada a una etiqueta o una altra. Es
poden crear tantes etiquetes com es volen.
XAT:
Es poden crear grups afegint a contactes les persons amb les que vols xatejar, o es poden
parlar amb una persona sola.
ZONA DE CONVERSES (SAFATA):
Hi han tots els
correus rebuts.
Quan escrius un correu pots triar l’opció de que te’l tradueixi.
3. 3
És la configuració bàsica del correu, segons la opició que es tria s’hi pot configurar una cosa o
una altra.
TEMES:
S’hi pot configurar l’aspecte del teu correu.
INFORMA D’UN ERROR:
Aquí hi
trobes
l’opció que
t’informa si el
teu correu té
algún
problem.
4. Aquí s’hi troba tot el que es pot configurar al correu, per editar les etiquetes, el xat, la mida de la
pàgina, els temes del correu, la visualització de la safata d’entrada…
4
Exemple de quan escrius un correu, pots posar tants correus com es vol, pots triar el tipus de
lletra, tamany, adjuntar fitxers...