female reproduction imaging techniques Flashcards

1
Q

advantages of Ultrasound

A
  • no radiation
  • non-invasive
  • cheap
  • localisation of lumps
  • well-tolerated
  • easily available
  • can take measurements
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2
Q

disadvantages of ultrasound

A
  • this modality is operator dependent- because it is so specialised
  • does not give functional information
  • cannot image gas or air-filled structures
  • bones also get in the way
  • patient habitus - bigger patients may affect resolution/quality of image
  • requires prep
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3
Q

ultrasound female pelvis

A
  • first choice modality

- followed up by other imaging modalities (depending on findings)

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4
Q

reasons to ultrasound

A
  • unusual pain or bleeding
  • infertility
  • menstrual problems
  • confirmation of a pelvis mass
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5
Q

why is it important to know where the patient is in their cycle

A
  • normal appearances may be reported as abnormal

- Abnormal appearances may be reported as normal

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6
Q

endometrium changes through cycle (day 1-4)

A
  • menstruation

- may see fluid in the cavity when imaging

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7
Q

endometrium changes through cycle (days 5-8)

A
  • early proliferative phase

- very thin echogenic line

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8
Q

endometrium changes through cycle (days 9-15)

A
  • follicular phase
  • becomes thicker
  • 3 line sign
  • ovulation occurs
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9
Q

endometrium changes through cycle (days 16-28)

A
  • luteal phase

- when endometrium is the thickest

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10
Q

Transabdominal approach

A
  • normal eating and drinking
  • patient is not required to change
  • must have a full bladder
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11
Q

why is a full bladder needed

A
  • moves bowel out of the way
  • useful as an anatomical landmark
  • manipulates the position of the uterus for it to be visualised
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12
Q

transabdominal scan - technique

A
  • patient ID
  • consent
  • patient is supine
  • paper towels to protect clothes
  • questioning the patient about their cycle
  • longitudinal and transverse sections
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13
Q

TA aftercare

A
  • patient is given tissue to clean off gel
  • they can go to the toilet
  • discuss results
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14
Q

TA advantages

A
  • large FOV
  • visualise relationship with other organs
  • can image large masses
  • can image other areas
  • can take measurements
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15
Q

TA disadvantages

A
  • limited resolution
  • cant pick up small lesions
  • uncomfortable full bladder
  • some bladders take longer to fill
  • retroverted uterus - difficult to scan
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16
Q

Transvaginal approach (TV)

A
  • empty bladder
  • normal eating and drinking
  • undressed from the waist down
  • consent needed, as it is more invasive than TA
  • uphold patient privacy and dignity
  • chaperone needed
17
Q

TV-technique

A
  • positive ID
  • Empty bladder
  • explanation
  • consent
  • chaperone
  • allergies
  • question patient
  • sterile gel used
  • cover probe and gloves
  • probe is inserted and scan is taken
18
Q

tv advantages

A
  • higher frequencies- better resolution
  • no full bladder
  • quicker scanning time
  • improved visualisation
  • chaperone
19
Q

TV disadvantages

A
  • need to find a good chaperone
  • uncomfortable
  • smaller FOV
  • risk of cross infection
  • cant assess other areas
  • ## cannot view high positioned masses
20
Q

pathology (Fibroids)

A
  • benign muscle tumour
  • affects age 35+
  • asymptomatic
  • grow in response to hormones
  • can push against other structures when they grow
21
Q

if endometrium looks thick at wrong part of cycle, it can mimick

A

a polyp
carcinoma
hormone imbalance

22
Q

if endometrium looks thick at wrong part of cycle

A
  • could be to do with hormonal imbalance
  • could be to with with post menopause
  • oral contraception
  • absence of periods
23
Q

polyps

A

do not undergo malignant transformation

  • bleeding and spotting between periods
  • problems getting pregnant
24
Q

treatment of polyps

A
  • removed as a day case

- once treated , it can lead to successful pregnancy

25
Q

endometrial carcinoma - ultrasound

A
  • appear irregular
  • thick walled
  • heterogenous different densities
  • may be abnormal bleeding
  • pain pelvis, back, leg
26
Q

ovarian carcinoma presentation

A
  • back pain
  • abnormal pv bleeding
    nusea and indigestion
  • bloated, swollen adomen
27
Q

ovarian carcinoma risk factors

A
  • risk increases with age
  • family history
  • lifestyle
  • endometrial tissue migrates and grows in other parts of the body
28
Q

MRI Female pelvis structures

A
  • reproductive patient
  • adjacent gu, gi
  • multiplanar capability
29
Q

MRI female pelvis reasons

A
  • staging for cervical and endometrial cancers

- screening

30
Q

stages of cervical cancer

A
  • 0 - Abnormal cells
  • 1 - cancer is only in cervix
  • 2 - cancer is invading surrounding tissue
  • 3 - cancer spread to lower vagina or pelvic wall
  • 4 - cancer has spread to other organs
31
Q

CT staging and response to treatment

A
  • looking at diseases that have moved into other structures
  • how far has the cancer spread
  • determine the treatment options available e.g. radiotherapy, immunotherapy, chemotherapy, surgery
32
Q

PET- staging and response to treatment

A
  • to do with metabolic activity
33
Q

HSG (histrosalpinography)

A
34
Q

reasons for hsg

A
  • cause of subfertility- is there a blockage in the fallopian tubes
  • recurrent miscarriage
  • following tubal surgery
35
Q

hsg patient prep

A
  • patient receives leaflet
  • chlamydia test is taken
  • patient is told to make an appointment on day 1 of their menstrual cycle
  • appointment is made around day 10 (patient cannot have unprotected intercourse from day 1)
  • on the appointment day, a urine sample and pregnancy test is taken
  • consent also needed
  • patient wears gown
36
Q

HSG procedure

A
  • fluoroscopy/ interventional radiology
  • sterile procedure
  • patient ID
  • patient is supine
    catheter is inserted
    imaging over pelvis
    contrast is introduced
37
Q

after HSG

A

the patient is given a pad to wear - not a tampon

patient is also given time and space to clean up and change

38
Q

uterine artery (fibroid) embolisation

A
  • blocks off the blood supply to the fibroids.

- aims to shrink fibroid